Is it worth it to try to get a girlfriend?

I’ve never had a girlfriend before and im about to be in my mid 20s and I’ve never got close to having a girlfriend. I didn’t have my first kiss till right after I graduated from high school. I have only i guess got lucky enough to have sex twice but other than that, my whole life has been rejection after rejection.

I don’t get, why is it so easy for everyone else. How come everyone else can just snap their fingers and be able to hookup or date or even marry whoever, but for me I can barely get a girl to keep talking to me for more than a few days.
I do everything everyone tells me to do. Be nice to her, make her feel comfortable, be confident, be yourself, make her laugh, make intentions clear, etc. I do all that and im still constantly getting rejected or ghosted.

Everyone keeps saying “dont give up” or “keep trying it’ll happen one day”. But im really getting sick of wasting my time with people. Im getting sick of chasing this stupid fairytale like dream that every day shows that it’ll never happen.

Is it just better off accepting that it’ll never come true and just accepting the fact there’s no out there for me and clearly I’m not for anyone in world. Is it really just better off being truly alone, ive been like this my whole life. Sorry for this stupid long question, i don’t care if no one answers. I just needed somewhere to vent it out