I feel like crap everyday now

My dad passed away on the 10th of this month and I'm feeling very sad, I have no one to lean or to turn to for support at all. I'm greiving alone and I feel so sad, I've tried to turn to my mom in this difficult time for me all to be told to just "get over it already" when I'm hurting because I lost a parent. both her and my siblings tell me to stop crying that I need to get over it already that I should be "tough" their stupid asses only say that because they weren't on good terms with him, so they aren't affected at all by his passing. my mom even said that she was happy that he died. I'm tired of having my feelings invaldated idk why my family supports other people who are in emotional pain but will dismiss my feelings. I really have no one to turn to any advice?