How old were you when you realised you're actually pretty dumb.

I used to think I'm regular (normal smart) when I was in my 20s but fact is - I was a complete idiot! I wasted so many good opportunities in life for being love crazed. I used to tie myself to a men who never deserved me in the first place and who were s complete waste of time. The fact that I would get so miserable about being dumped by someone 100 levels under me in every possible way was a painful realization of how dumb I used to be. I was desperate to stay with him to a point where I even accepted fwb arrangement that lasted for years! Guy was lower than average in everything - a refugee who speaks and acts like a hillbilly, listens to the hillbilly music I always despised, barely finished high school and was working as a security guard at night and in construction at days to be able to make a living at all. Mistreated me and never thought about me as a marriage material cause I wasn't a Muslim. Because I got involved with him I paused my studies for years, got involved with bad company, started working as a waitress to finance my stupidity of having race cars. That to me is the ultimate stupidity I made in my life. But I continued to be love stupid even after him cause I let once again someone ignore me while I cling to them for not being a Muslim like them and last drop is the fact that I handed over the appartment I had for nothing other than keeping someone with me cause I couldn't afford the renovation at a time and I desperately wanted us to have a place to be together. Yes we still are in it together but I regret giving it up so easily cause I could have invested in it later on and would have a property of my own now...all in all, I guess my stupidity comes out of being in love for the most part, otherwise I can say I'm pretty smart and do pretty good in life but this...this makes me a complete idiot in my 20s. Think my awakening to realization how dumb I was came around 32 and since then I've changed my mindset about love completely