Just need words of encouragement following breakup💔

I just ended my 3yr relationship with my sons dad. I finally got the courage to walk away after lots of cheating, physical abuse etc. Today is the day I blocked him on my phone & all of my social media accounts. It’s only been a few days since I put him out of my apartment but I’ve just been so depressed & down I haven’t really eaten anything. The only thing keeping me going is our 9 month old. He asked me to come back home lastnight and I almost said yes but I know the situation is toxic and my son and I deserve soooo much better. I’ve been knowing him since we were 11 & he’s literally the first guy I ever kissed & said “I love you” too. I feel like I’ve lost my best friend, my everything. I don’t have any close friends he was the only person I talked too. Any advice on how to make this process easier & help my heart heal faster I cant take this😭😭😭💔 I just need some positive words!!! Anything😣 I don’t even know where to start with moving on with my life