Im scared

I've been a lil bit scared of doing the surgery since I know about the serious secondary effects that it could case. I just don't want to work my ass of and save a lot of money just to end up in a wheelchair. So I wanted to know how I could do this in the safest way possible, if I could know about if I'm capable of doing It or my legs won't take it. If there's any way to prevent issues. Or training before doing the surgery to avoid too much pain. Im also scared about the heightflation, I only could make it to 5'6-7ish if do it in femurs, more if I do it in tibia but I now it could be even more risky. Wanted to say also that I won't do it know, I would do it like in 3-4 years HOPEFULLY. So I don't know if this thing will be more safe for that moment or if it will be the same. sometimes i feel really old like I'm not enjoying my youth and all it's bc height. But well, I appreciate your advice guys and sorry if that was a lil bit of venting in the case that's not something well received in this sub.