But life has its limitations, and it is hard to develop skills in all of my interests while having a full-time job. But life has its limitations, and it is hard to develop skills in all of my interests while having a full-time job.

But life has its limitations, and it is hard to develop skills in all of my interests while having a full-time job. But life has its limitations, and it is hard to develop skills in all of my interests while having a full-time job.

But life has its limitations, so it is hard to develop skills in all of my interests while having a full-time job. But life has its limitations, so it is hard to develop skills in all of my interests while having a full-time job.

"So" connects the sentence nicely here

The downside is if you want to master something, then focusing on one thing at a time and refusing to do the others might be the more productive way. The downside is if you want to master something, then focusing on one thing at a time and refusing to do the others might be the more productive way.

The downside is if you want to master something, then focusing on one thing at a time and refusing to the others might be the more productive way. The downside is if you want to master something, then focusing on one thing at a time might be the more productive way.

The downside is that if you want to master something, it might be more productive to focus on that one thing, and give up on the others.

The downside of having so many interests is if you want to master something, then focusing on one thing at a time and refusing toputting aside the others might be the more productive way. The downside of having so many interests is if you want to master something, then focusing on one thing at a time and putting aside the others might be the more productive way.

The downside isUnfortunately, if you want to master something, then focusing on one thing at a time and refusing to do the others might be the more productive way. Unfortunately, if you want to master something, then focusing on one thing at a time and refusing to do the others might be the more productive way.

When you say 'the downside', it is not too clear that you are talking about the downside of having multiple interests. I changed it to 'unfortunately.' This conveys the meaning of 'it is unfortunate that focusing on one thing is more productive because I am not able to do it.'

The downside is if you want to master something, then focusing on one thing at a time and refusing toignoring the others might be the more productive way. The downside is if you want to master something, then focusing on one thing at a time and ignoring the others might be the more productive way.

using "ignoring" here makes it a little clearer

Especially when I hit a plateau, I can't help but blame myself for not focusingbeing able to focus only on one thing. Especially when I hit a plateau, I can't help but blame myself for not being able to focus only on one thing.

I still struggle with it, andbut on the other hand, maybe not takI shouldn't see art as something I should master, but as a journey I can enjoy at my pace would be more suitable for mown pace. I still struggle with it, but on the other hand, maybe I shouldn't see art as something I should master but as a journey I can enjoy at my own pace.

I still struggle with it, and on the other hand, maybe nobut maybe I shouldn't take art as something I should master, but rather as a journey that I can enjoy at my paceown pace. I think that that would be more suitable for me. I still struggle with it, but maybe I shouldn't take art as something I should master, but rather as a journey that I can enjoy at my own pace. I think that that would be more suitable for me.

I still struggle with it, and on the other hand, maybe not take artreating art not as something I should master, but as a journey I can enjoy at my pace would be more suitable for me. I still struggle with it, and on the other hand, maybe treating art not as something I should master but as a journey I can enjoy at my pace would be more suitable for me.

I still struggle with it, andbut on the other hand, maybe not takeing art as something I should master, but rather as a journey I can enjoy at my own pace would be more suitable for me. I still struggle with it, but on the other hand, maybe not taking art as something I should master but rather as a journey I can enjoy at my own pace would be more suitable for me.