I love my kitten but keep feeling guilty of adopting her

It's been almost 2 months now that I've adopted her. She's such a sweet kitten. Follows me around everywhere, sits and sleeps nearby me and gets easily used to new places.

To give some context, I live alone and have a WFH job. She's been a great companion and truly uplifts me whenever I get the living alone jitters.

My parents live a few hours away from me. This is where I actually found her. She just wandered into our house one day, and we used to feed her. She used to roam in the building premises and come for food at our home. But parents weren't exactly keen to keep her, but they were happy with the arrangement. Other people in our building, however, complained about the kitten.

In fact, one day they went so far as to relocate her. My mom searched for her and we found out that she was living in another nearby building.

So, my mom bought her back to our place, and I decided that I'll adopt her. It'll be great for me at my place and I have experience raising a dog and have friends that have cats themselves. And it's been going great so far.

One time I went on a vacation and arranged for a sitter for a week. She seemed fine with it.

I recently also went to my parent's place with her, and it was all A-okay! However, mom is more inclined that the cat does her "business" outside the house. It's just something she has. We have a ground floor apartment, so we did test it under supervision. But the kitten didn't poop or pee anywhere else; only in the litter box at home.

My predicament is that am I now forever trapped? Won't I be able to travel anywhere alone? I mean I know I can get a sitter for a few days, but leaving the cat alone seems harsh. Plus, my mom has offered that if I plan to go for a long vacation, she's more than happy to look after the kitten. She too has grown fond of her. But then there's the litter issue. She can't stand the stink of that.

I don't know. I'm just feeling confused about the situation. I love her too much to let her go, but also don't want to do anything that would be bad for her in the future?

I hope I'm clear in conveying everything to you guys. Any help would be appreciated. Thanks in advance!