Enter a bunch of startup competitions like VC Task Force and have some write down what the judges critique, we won second place at a big one and got a TON of comps, + even if you lose you get to know EXACTLY what VC people will ask you at the big meetings (Big wigs)!
Meeting other founders will lead to you going to "tech mixers" a bunch of people begging for money or talking your ear off about stuff no one cares about, and newsflash, startups are typically broke as shit, so you're gonna have a hard time finding customers by going to startup stuff
My best days have just been working from coffeeshops
I was in the same boat, not sure if I can give advice but I just took another corporate job while my company grows and I advise them and help where projects actually sound fun, otherwise I just don't care
In the meantime I work on building my own sellable tech.
Hope that helps, I'm working on a sweet e-commerce platform right now and building just little sellable tools