Best way to increase DUPR without tournament or league

I’m currently struggling to get above 4.0. However, I can’t find a female or male partner to enter tournaments or leagues with. Folks that are above 4.0+ don’t trust me to pull my weight and don’t want to risk their DUPR. Folks that are below 4.0+ just don’t have the aggressiveness to win matches that’ll get me above 4.0 so I feel stuck. I honestly don’t care about my dupr per se but some places are very strict about dupr ratings to sign up for open plays and that’s what matters to me. I feel stuck.