Depression and a breakup

My boyfriend and I broke up because I told him I need to find happiness myself since I've had depression for quite some time now.... Whenever I'm sad he can't make me happy because I don't necessarily know how to be. I thought it was best to end it but I started my period and I'm really emotional and sad.... I feel like my life is falling apart and that my depression is swallowing me whole 😔 does anyone have any suggestions to cope with all of this so I don't make the mistake of getting back into a relationship I can't handle?