Sexual assault and abuse?

To keep the story short and simple I was sexually assaulted back in July reported in September and my case was sentenced no prosecution b/c lack of evidence I assume. Ever since I’ve been feeling lost and not able to talk to people or get into depth like I want to. I’m only 15 and I can’t really just find a therapist and whatnot. Any coping mechanisms or tips? Is sexual assault/abuse always violent? B/c in my case it was not and it makes me wonder if it was truly rape. At the time I was 15 and he was 19 the moment I got home I just felt like something was wrong and washed and scrubbed my body so hard that night. I don’t feel like I can talk to my parents and this whole situation is always bothering me and I burst into tears every now and then and I can fully give myself in a relationship bc of this and other things. My on and off bf at the time accused me of lying and overall he was an asshole but I still like to claim his as my first (consensual) partner. I’ve lost many friends and family members bc they don’t believe me. Anywho I’ve never had a really good talkative relationship with my parents and I find it difficult to tell them anything. This situation has just affected my whole life I feel like school is pointless and so is about everything else. Can anyone help me?