Best way to ask for help?

I realise now that I have a problem. Actually scrap that, I always knew. The difference is that I am now ready to admit that I have a problem. So much has happened in my life and being the stubborn person I am, I pushed it all inside and pretended it didn’t matter. Now it has all come at me at once. Flashes of trauma, whether they be emotional, physical and even the few sexual from my past have come back and I can no longer live normally. I don’t sleep (without medication or alcohol), I barely eat, I’m always so sad, angry or anxious. I can’t concentrate and when I can, it gets destroyed by panic attacks. The thing is very few people seem to notice (mostly the ones who know everything), so these things stay hidden. I’ve decided I want to let people know and get help, not only to let it out, but as a way to heal and prove that I am able to trust. I know with help I can get past all of this because I am strong, and even though I’ve had attempts, I honestly value my life and want to live. The only problem is I don’t know how to tell them. I would really appreciate if you could help me find a way.