How do I stop feeling sad after breaking up with boyfriend?

All I have is short relationships that never last cuz the damn guys always end up emotionally unavailable. I just think its so selfish of them to make me like them and give me so much attention to just all of a sudden excuses of why he can't see me but "likes me" yet his actions dont match which is reason for me dumping him. I gave him another chance to show me if he really likes me to prove me but I just dont see it. I been feeling sad and trying to get my mind off him by spending money at the mall but I feel nothing is gonna make me feel happy. My time is always getting wasted and I feel depressed I just want a man to share memories with. I feel so dead inside and feel maybe its better rotting alone since I can't trust guys these days

How do I stop feeling sad after breaking up with boyfriend?
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