I've noticed when we want to practice a new skill there's always a sentence that appearpops into our minds, "I have no time to practicedo that".

Very natural, a very colloquial way of expressing an idea that appears.
Practice is considered quite formal here. Just say do!

I’m usually have the same thought, butguilty of that, but instead my mind saythinks something like: "I don't have time to practice a new language because I'm ain college student".

Much more natural. Minds don’t talk they think.
More natural, saying your occupation like that is a bit too formal for this narrative style.

However, I've also noticed that there's a lot of college students who plays in the basketball team,and other students who spend time doing what they love such as listening to music, danceing or going to the gym.

correct verb with object; plural vs. singular : “she plays the guitar” “they play the guitar” “they play in a band together” “they go to the gym” “she goes to the gym, that’s why she’s so ripped”
No need “also” with noticed here. You could’ve put “also” here if you had phrased the previous sentence like this: “I have noticed that I’m usually guilty of that…”

You need to distinguish between your ideas found in the first and second clauses. “And other students…” differentiates between the students you have just talked about (college students who play basketball) and those you are now talking about (college students that listen to music, dance etc.)

I will be honest; this second correction I have given you are quite nuanced and will be difficult to intuitively integrate into your English unless you are also reading English novels. The best advice I can give you to nailing the creation of these natural, stylistic expressions is to read as much English as you can, especially novels as that narrative style will allow you to perfectly master expressing these ideas in the way you want to (like a narrative!)

So, I woul’d like to change my mindset and start noticrealising that I also have enough time to keep doing what I love.

I’d - more preferable as you are writing imaginatively or in narrative style, it is less formal and you’re talking of a personal experience, so please use connectives as much as you can!

Realising - a better alternative to noticing. Realising is often used in this context, when talking of revelations etc.!

So keep doing what makes you happy even if it's just for 3015 or 1530 minutes a day.

Spelling and minutes should be listed from shortest amount of time to longest.

I've noticed that when we want to practice a new skill there's always a sentence that appears in our mind, "I have no time to practice that".

However, I've also noticed that there's a lot of college students who plays in the basketball team, and other students who spend time doing what they love such as music, dance or going to the gym.

So keep doing what makes you happy even if it's just for 30 or 15 minutes a day.

Great advice !

I've noticed when we want to practice a new skill there's always a sentencethought that appears in our mind, "I have no time to practice that".

However, I've also noticed that there's a lot of college students who plays in the basketball team, ss. Students who spend time doing what they love such as music, dance or going to the gym.

I've noticed when we want to practice a new skill there's always a sentence that appears in our mind,: "I have no time to practice that".

You could also say "I don't have time" to practice.

However, I've also noticed that there's are a lot of college students who plays i on the basketball team, and students who spend time doing what they love, such as playing music, danceing or going to the gym.

So, I would like to change my mindset and start noticingremember that I also have enough time to keep doing what I love.

Your original was correct, but this is a bit more natural vocabulary.

So keep doing what makes you happy even if it's just for 3015 or 1530 minutes a day.

Again, your original was okay, this is just a more common way of saying this phrase.