Doggy Style??

Okay so me and my boyfriend want to switch stuff up in the bedroom because we usually only do missionary and cowgirl style. I’ve wanted to try out doggy since we failed once before like a few months ago. We tried doing it again and I don’t know if it’s height difference or because his dick curves downwards, but we just can’t seem to get his dick inside me. It’s frustrating and definitely a boner killer. I really want to be able to do this but dang. Sex is hard lmao 😂

Any tips and tricks are welcome. Thanks y’all 🙌