Anyone else experiencing relationship fatigue

I've been through 7 relationships in 2 years. It's taking a toll on me. I've learned a lot about how relationships function and what to do and what not to do. I've learned a lot about myself and have matured emotionally, but all of that tends to not matter much when you're walking into your 8th prospect putting your best self forward trying, like actually trying and in the end the results are not how you expected. I don't blame the other person this time around, they have a whole lot to deal with and sort out before they are ready to enter something seriously. That's okay. Perfectly fine. Even still, it's just tiresome, trying over and over and never having a good outcome. I'm just tired of it all. The constant putting effort into something that results in a loss.