Ummm.... I like someone I shouldn't...

I am not quite sure if this is appropriate or in the right pace. I am new. Here goes nothing...
I know this woman. She is in her early to mid twenties. I am eighteen. She is absolutely gorgeous both inside and outside. She is so kind. Every time I am near her I feel happier. I have trouble trusting people and she is one of the 3 people I trust. I feel sooo comfortable around her, I feel like I could tell her anything. She is absolutely amazing. I really think that I might love her. She is only the second person ever that I think I have 'liked' in that way. This feels so intense. I think I am recognising it more and beginning to accept my sexuality, that could be why I am feeling such strong feelings. She was the first person and is the only person I have told about my sexuality (aside from my counsellor but I haven't actually clarified my sexuality with her).
I don't know what sexuality she is. My 'gaydar' hasn't activated at all yet.
That is a problem. However this woman is my French Teacher. I know that it is not appropriate for me to have these feelings for her and that nothing could happen between us. I really want it to though. I am having dreams about being in a relationship with her. When I am in class with her I am constantly looking at her lips and I have really strong impulses to kiss her. She is so beautiful. I want to tell her so badly but I know that it is a bad idea. I don't want to risk making things awkward between us in class. She is acting a bit distant since I came out to her but that could probably just be a coincidence. She was very supportive and reassuring when I told her.
I am sorry that this is so long but I have to get it off my chest. Any advice would be appreciated.
Thank you for taking the time to read this. I know there is quite a lot of rambling but once I started I had to be honest.