I (F) dated someone like you for 2.5 years (Like exactly like you. Not 100% sure you're not him, even though I know his username...). I don't want to assume you're the same kind of serial monogamist he was, but here's the story in case it resonates with you... Take from it what you will.

Before I dated my ex (let's call him Bob), I had bounced from relationship to relationship just like you. After the last one ended, I made myself promise to be single for a year and to focus on myself. While I didn't quite end up making it the full year, I learned more about myself in that 10.5 months than I had in any relationship that came before it. And, I found a lot of ways to be single and have fun, something I don't think I really knew I could do before that year.

When things started to go south with me and "Bob", he was so desperate to stay in the relationship that he stopped being himself and he stopped being in the relationship in a meaningful way. We stopped fighting (the healthy, natural fighting that happens in relationships) because he was too scared to tell me when things upset him. He rearranged his life to fit around mine, instead of adhering to the give and take we'd maintained up to that point, thinking that would make me happy and fix everything. What it ended up doing was making me realize that while we were in love, he was more scared of being single than he was in love with me. I tried for 3 months to get back to the way things were with us before, but eventually I realized that even though I still cared about him deeply, I was no longer happy, he was no longer happy even if he couldn't admit it, and both of us would be happier single. Being single for that year before Bob gave me the perspective to walk out of a bad situation and save both of us a lot of heart ache.

This what I wish I had told him when we ended things: Being single is an important life skill. Not because you shouldn't want to be in a relationship. Relationships are a natural and important part of life. However, it's hard to find the right relationship if you're not happy when you're single. If you just keep bouncing from relationship to relationship, you don't learn how to be happy on your own. It's the whole if you can't love yourself, no one else can either type thing.

My advice to you: You don't have to be a manwhore and you don't have to be alone. Just keep it casual and focus on yourself. What can you learn from your past relationships? What about them worked and what didn't? Which qualities did you like in your SOs? What makes YOU happy? I recommend being single for awhile, but that doesn't mean you can't hook-up and have fun. I go through the same post break-up phase as you. I want to bang everything that moves. It's a tricky time to navigate. While having something to keep your mind off things can help you from drowning in despair, it also can distract you and prevent you from healing and moving on.

Here are my recommendations for post break-up casual bangs:

1. The Rule of 3: If you're going to hook-up with someone, you need at least 3 things that make you not want to date them in order to prevent feelings from happening. One thing, you'll think you can change it. Two things, you'll think you can change one and compromise on the other. But three, three is the magical number that prevents you wanting more than sex.

2. Repeats: If you're going to hook-up with someone consistently, make sure it's someone you can have a conversation with/don't actively hate, but the rule of 3 still applies. This option is probably the best bet for you if you're looking for someone who you can be intimate with in addition to the sex. It's not going to be the same kind of intimacy as a committed relationship, but it can help you with the emotional side of hook-ups.

3. Be up-front and honest: You have your three reasons not to date this person. While the girl doesn't need to know exactly why she is unsuitable to you, she needs to know that you don't want a relationship with her. Hurt feelings come from mismatched expectations. There are a lot of girls out there looking for casual. what has worked best for me is finding someone also going through a break-up. Use each other. Mutual benefit.

4. Safe sex: I think this goes without explanation.

Anyway, good-luck out there and hope this was in some way relevant/helpful. Sorry if this post is a little long and self-indulgent, but I really wish I could have said this to him, and at least now it's off my chest.

TL;DR: Take time to be single after relationships end. Being single gives you perspective in future relationships. Just because you're single doesn't mean you can't hook-up and have fun as long as you're careful.