Just venting

Recently I just ended things with someone (wasn’t even a relationship honestly but I felt a real connection with this person). We talked everyday for maybe two months or a month and a half idk. And we only hung out ONE TIME! There were red flags but I was convinced I didn’t like them so I just kept talking to them, and they had shitty communication skills and made me feel like my feelings weren’t valid so I thought it was for the best when they GHOSTED ME!! Longgggg story short after being rlly sad about it I told some friends and even my mom and brother about it and how I felt and how they acted and they all told me I SHOULDNT be with them or talk to them so I cut them off completely. I honestly got really sad after cutting them off. It was so weird to me because I’ve never felt so sad about someone not being in my life anymore. Anyway it honestly is for the better but I can’t help but feel sad and I’ve been more depressed than usual lately. I know I should put myself first and just love myself but it’s so hard sometimes and some days I still think about them and can’t help but cry. SORRY this is so long but it feels good to type it out for strangers🥺. Any tips on how to just have some self love Nd stop letting this person affect me so much ?