Should I tie my tubes ..??

So I’m having my son via c-section on February 27th because I had an emergency c-section with my daughter (who is 1 & half years old now) due to pre-eclampsia so my dr told me it’s not safe for me to deliver naturally because I haven’t had enough time to heal completely. Well he asked me if I want to tie my tubes after my son is born and I said yes but my S/O doesn’t want me to . (I’m 22 years old btw ) But the dr said my kidneys aren’t healthy enough for another child anytime soon ( my right kidney is shutting down ever since my first pregnancy when I got a bad infection and it never healed right ) and I don’t think we’re in a good position to afford another child for a long time as well ... little background I never graduated high school and I’ve only had two jobs my whole life so I feel for me two kids is enough one girl and one boy I got my perfect pair so I feel I’m going to be a stay at home mom until there in there teens and by then I doubt I’ll want another baby by then because having kids with a big age gap just isn’t something I see myself doing either. And when there in there teens I want to try and start living my life and go back to school get my ged and try to start earning my own income so that way my S/O isn’t the only one making the money and then maybe we can buy our own house and a nice new car and settle down and start saving for there college funds or something like that idk I just don’t feel like I want anymore kids I’m honestly over having kids and I feel like if I tie my tubes my S/O won’t want to be with me anymore cause he wants a big family (at least 2 more kids ) and I don’t am I selfish if I get this procedure done talking only me feelings into account. Should I just wait .? Have any of you had your tubes tied and what was it like ..?? I’m just full of questions and no answers I don’t know where else to look without getting judged by family and frequents who all say I shouldn’t do it except my mom who supports my decision no matter what and I’m my cousin who is a nurse who also supports my decision to get my tubes tied ... just want some advice I guess sorry for the extra long post 😬 but I would really appreciate any feedback I can get 😁 Thanks In advance 🤗