Just a note beforehand, I'm responding to this mostly as one of those women on dating sites. It might give you more perspective.

Also apologies if anything here comes off as mean, I've not yet perfected the art of sugar coating words when I think something needs to be said bluntly and there's gonna be some bluntness in here.

First of all, you need to be more fair to yourself. Your BMI is 26.6 when I checked on Google just now. That's only slightly overweight and that is a fact, not an opinion. I'd love to have that BMI. It seems like you're extremely unfair to yourself (calling yourself "ugly and worthless" is not good) and that has to change. Being kinder to yourself is a huge step in gaining self confidence and will help you attract people. Also, if someone truly just wants a friend out of you, looks would not matter. If they need to know what you look like then they're after more than friendship.

Second, I agree with divine that going to dating sites looking for friends isn't a great idea. It would look pretty creepy to me if I saw an older guy just looking for friends on there, honestly (I never look above 40 though). Try looking for different interest groups online for your hobbies, these can be forum communities or chat groups or even IRL groups. So for instance say you're into model trains, just Google something like "model train community". You said you like fishing, so I looked up "find a fishing buddy" on Google and there's actual sites for that. I didn't look into them to see if they were good or not, but you can try it out.

Third, adding everyone and anyone who you don't even have anything in common with, just that they're close to you, and just saying "hi" is definitely not going to work. Even with topics to talk about, conversation on dating sites often die fast, and that's with things in common. I personally don't even bother if I see I have nothing in common with someone, especially if all they can come up with in their message is "hi"... It seems so low effort and I'm not that great at small talk myself, so I feel it's not worth bothering with.