Struggling to get over a miscarriage

When i was 17 i had a miscarriage, im now 22 and im still very upset about it. At the time i didnt tell many people i was pregnant out of fear as i hadnt made a choice but a large part of me wanted to keep it. the only people i told was my boyfriend at the time and a couple of close friends who im no longer as close with. At first it didnt really bother me and i was kind of relieved that the choice was made for me however about a year later i realised it really did upset me and i felt guilty for feeling relieved at the time and i’ve had times on and off ever since where its almost consumed me. The problem is i feel like because its been 4 years its stupid for me to talk to anyone about it so i found myself suffering in silence because i feel like i should be over it by now and i just dont know how to get over it, i have never been pregnant since so i dont know if a lot of it is a deep rooted worry that i may never be able to have children or its just that i dont know the right way to process this trauma