How am I supposed to get a girlfriend?

It's difficult with the Covid lockdowns, but approaching women in real life is a lot better. Women are inundated with matches and messages on dating apps. It's just the nature of the game.

I'm surprised you've had 0% success rate after getting some matches. I'm no lost Hemsworth brother but I had dates and hookups from Tinder when I was single, and this was before I started lifting.

You might be behaving a way that puts them off. Women tend to like you to be chill and have a sense of humour when chatting in the beginning, usually with some cheeky flirting. They don't like it when you're short with them or pushy, dickpics are a no-no. 

Maybe yo should see if you have better luck, with a nice guy.

Everybody has abdominal muscles. You ought not to be searching for a prize for having basic human anatomy. 

You are not "supposed to get a girlfriend". If you meet someone you get along with and it develops into an intimate relationship, then you will, but you are not "supposed to". 

If at 34 years old you think that having abs is going to make a huge difference in girls having interest in a relationship, you haven’t learned much about girls. Look, with online dating people initially connect or match based on physical interest, but the only way they will stay connected is by connecting in other ways. If you can’t communicate well, don’t have anything interesting to talk about, or make cringey efforts to be cute/funny/clever, that may be why you get ghosted.