Eight cats are too many? (Solved)

Personally I never wanted to have more than 3 or 4 cats but already having 4 cats one day I took the decision to adopt a stray cat that was pregnant because where I live there are many stray cats and really most of the they have a miserable life or die young (just between last year and this one, I took care of two baby cats that had been abandoned by their mothers, and I say this with confidence because I heard them crying for days and when I went to rescue them they were plagued with fleas and conjunctivitis), so I left her in a separate room and there she gave birth 3 or 4 months ago to 3 kittens.

At first my intention was never to keep the kittens, since they born I started to look for people who wanted to adopt baby cats and even asked in nearby veterinaries but they were going to live locked in a cage until someone adopted them and honestly I think it is a little unfair for them considering that since they were born they have lived in a spacious room with all their needs.

So I really gave up looking for someone who wants to adopt them and I guess I will keep them, but really despite having a lot of experience with cats and having enough space for them and everything to meet their basic needs every day I feel stressed and as if I had a burden on me because I feel that there are too many cats for me alone, because I practically live alone (I take care of my father) and I don't know, this was not really what I wanted nor was my intention.

Thanks for reading.

Edit: Thanks to those who commented, I was able to open my eyes and in a week I will give the kittens to a veterinary center where they will take care of their adoption.

Sincerely it hurts my soul to have to do this but it is necessary, both to ensure a decent life for the kittens and for my mental health.