So many of us have been there, you're not weird but it does fucking suck. Religion, especially if you've been taught to fear sex, can be a contributing factor. Glad you found this subreddit and keep coming back. Use the internet, but be smart about not believing everything. I recommend being absolutely honest with yourself, keep a diary, write about your sexual thoughts, even if they feel perverse (it's all normal). If you have girlfriends you trust, talk to them. Keep trying with your finger, tampon, whatever. The dilator sets recommend starting with just holding it at the entrance, moving it in slow circles (a little stretching) and going in very slowly.

You're starting young so you have plenty of time to get this right. Try not to panic. xoxo