Hello!! You’ve come to the right place lol. Sorry about your ex but glad you’ve decided to take steps to move on, that’s a great start!
Dating apps are… well pretty awful a lot of the time. Having said that almost everyone here has probably met at least several nice men on them and some even long term relationships. What I would suggest ultimately is to not take anything too personally, particularly anything that feels like a rejection, because unfortunately that’s very much common place on apps. Ghosting, slow fades, no follow through, random blocks are all a part of the process. If you don’t experience any of those then I’d be asking questions!
Take some fun natural photos of yourself out and about, nothing too filtered, write a few interesting things about yourself and just see how it goes. As for the tonne of gorgeous girls, I can tell you (from male friends on the apps/my bf) that a LOT of them are heavily filtered, not real, looking for a sugar daddy and/or escorts. So don’t let that concern you. I think men get targeted in a lot of different ways on the apps that women don’t.
Just see it as a fun adventure or a jaunt to a busy bar where there might some hot guys who you might chat to and meet up or some you never see again, some you wish to steer clear of etc etc. JUST DO NOT TAKE ANYTHING TOO PERSONALLY! And let the games begin! X