Apparently from your other post its like the 5th or 6th time...shouldn't you have a pretty good grasp on what to do/not to do by this point?
Exactly, figure out the common denominator of the problem, Phil; you.
If you recognize a pattern in repeated breakups, resolve the issue. I.e. Too insecure/jealous, neediness, validation seeking from her, indecisive, poor boundaries, not leading as a man, ignoring red flags, getting too attached too quickly, not respecting yourself. Those are just a few major turn offs for women. If you find one or more fix them, nip it in the bud. That's the best you can hope for.
If nothing else...get better at taking care of yourself independently w/o a woman in your life. That's the best gift a DJ could give to himself.