I did it in my early forties and gave up in the end, but if I could go back and do it again I'd write out my dealbreakers and not let go of them, but I had a vague idea of what I didn't want and ended up making ''exceptions'' for men because it seemed fun or they seemed sincere. Big mistake.
The problem with internet dating., you meet somebody and they seem to like you and it feels a lot like real life when you were younger when they liked you and you liked them back and you saw how it went, but it is not like that
If I could go back in time I'd make it clear that I wasn't going to sleep with anybody if there was a chance they were also sleeping with other women or even considering that. If you meet somebody who's serious about you, they'll get that because they won't want to lose you, but the whole cess pit is a pool of chancers now. I was so naive. A couple of times I assumed that they liked me and didn't want to risk messing things up by still looking around. But I was wrong.
If I could go back in time, no matter how many great dates you've been on, I wouldn't sleep with any separated men unless 1) the children knew they were separated and 2) they introduced you to at least one relative/close friend.
Look out for any weirdness with the timings they'll message you. Like if they're free to message you in the day but not in the evening, they could be in a relationship. If they cancel a date at the last minute but want to make another one, still in a relationship.
If they say they don't want a relationship, they don't want a relationship with you - it's important to interpret this correctly. If they ''don't want a relationship'' just give up and say ok, bye.
Don't bother with anybody who lives too far away as when winter comes, you're going to feel differently about going out to meet somebody on a sunny June day to a freezing cold January day.
Because of the nature of online dating, meet them for a coffee after work so that you can assess. Don't let anybody buy you dinner on the first date as I the wrong type of man feels owed a second date and sex if he bought you dinner, even though you didn't set out to get a free dinner and were just getting to know him. Better to have a first date coffee. Or one beer after work. Quick, casual. Ok bye.