Masculinity isn't toxic. It becomes toxic when it blames women for its problems.
Feminism is all for men talking about their issues. It practically begs them to. It is absolutely, positively not feminist to tell men that you're not enough if you can't get a woman.
That doesn't, however, pose an obligation on any woman to listen to you. It doesn't matter whose fault it is that you can't get a woman; it does matter that it's no woman's job to make sure you get one. Exactly what that will require is up to a billion different factors -- but "blames women" is going to be an enormous red flag.
Your suffering is real. You absolutely don't have to just suck it up. Go talk about it. If you don't have a friend you trust, try a therapist -- they're paid to do that. But be prepared for the fact that if your plan is to blame feminism, a good therapist is going to ask you to reconsider your underlying assumptions. And if your friends are just there to affirm for you that the reason you don't have a woman is the fault of the women -- there's a reason the word "toxic" came to be applied.