I knew theThat was the first time I heard of Wendy’s first, so I searched for it and I found that there isn’aren't any (shops) around my area. That was the first time I heard of Wendy’s, so I searched for it and I found that there aren't any (shops) around my area.

I knew theabout Wendy’s first, so I searched for it and I found that there isaren’t any shops around my area. I knew about Wendy’s, so I searched for it and I found that there aren’t any shops around my area.

I knew the've heard of Wendy’s first, so I searched for it and I found that there isaren’t any shops around my area. I've heard of Wendy’s, so I searched for it and found that there aren’t any shops around my area.

I knew thehave heard of Wendy’s first, so I searched for it and I found that there isaren’t any shops around my area. I have heard of Wendy’s, so I searched for it and I found that there aren’t any shops around my area.

“I knew the Wendy’s first” doesn’t make sense I think “I know of Wendy’s/I have heard of Wendy’s/I recognize the name Wendy’s is maybe what you are trying to say?

I knew theabout Wendy’s firstalready, so I searched for it and I found that there isn’aren't any shops aroundin my area. I knew about Wendy’s already, so I searched for it and I found that there aren't any shops in my area.

I was disappointing….ed… I was disappointed…

We use three dots for ellipses

I was disappointinged…. I was disappointed….

It was disappointing…. It was disappointing….

It was disappointing…. It was disappointing….

Or "I was disappointed."

I was disappointing….ed I was disappointed

I was disappointinged…. I was disappointed….

It seems there are the shops in Osaka and Kobe, so I wanted toill go there next time. It seems there are shops in Osaka and Kobe, so I will go there next time.

It seems there are the shopWendy's in Osaka and Kobe, so I want(ed) to go there next time. It seems there are Wendy's in Osaka and Kobe, so I want(ed) to go there next time.

We don't usually called fast food restaurants shops.

It seems that there are the shops in Osaka and Kobe,so so I wanted to go there next time. It seems that there are shops in Osaka and Kobeso so I want to go there next time.

The tense of the verb is wrong

It seems there are the shops in Osaka and Kobe, so I wanted to go there next time. It seems there are shops in Osaka and Kobe, so I wanted to go there next time.

It seems there are the shops in Osaka and Kobe, so I wanted to go there next time. It seems there are shops in Osaka and Kobe, so I want to go there next time.

"wanted" is okay grammatically, but means that you no longer want to go there. If you still want to go, then you can just use "want".

I knew theof Wendy’s firstalready, so I searched for it and I found that there isn’aren't any shops around my area. I knew of Wendy’s already, so I searched for it and I found that there aren't any shops around my area.

If you'd like to keep shop singular, another acceptable way to phrase this is: I knew of Wendy’s already, so I searched for it and I found that there isn't a shop around my area.

One of my favorite YouTube channels called Kevin’s English Room posted a video today, and in which where they introduced a hamburger called baconator from Wendy’s. One of my favorite YouTube channels called Kevin’s English Room posted a video today where they introduced a hamburger called baconator from Wendy’s.

I think this is the most natural way to say this. Another approach which is closer to your original is: One of my favorite YouTube channels called Kevin’s English Room posted a video today in which they introduced a hamburger called baconator from Wendy’s.

One of my favorite YouTube channel called Kevin’s English Room posted a video today, and in which they introduced a hamburger called bthe Baconator from Wendy’s. One of my favorite YouTube channel called Kevin’s English Room posted a video today, in which they introduced a hamburger called the Baconator from Wendy’s.

One of my favorite YouTube channel called Kevin’s English Room posted a video today, and in which they introduceding a hamburger called baconator from Wendy’s. One of my favorite YouTube channel called Kevin’s English Room posted a video today introducing a hamburger called baconator from Wendy’s.

One of my favorite YouTube channels called Kevin’s English Room posted a video today, and in which they introduced a hamburger called bthe Baconator from Wendy’s. One of my favorite YouTube channels called Kevin’s English Room posted a video today, in which they introduced a hamburger called the Baconator from Wendy’s.

One of my favorite YouTube channels called Kevin’s English Room posted a video today, and in which they introduced a hamburger called baconator from Wendy’s. One of my favorite YouTube channels called Kevin’s English Room posted a video today, and they introduced a hamburger called baconator from Wendy’s.

One of my favorite YouTube channels called Kevin’s English Room posted a video today, and in which they introduced a hamburger called bthe Baconator from Wendy’s. One of my favorite YouTube channels called Kevin’s English Room posted a video today, in which they introduced a hamburger called the Baconator from Wendy’s.