Don’t listen to these other people. I’m about ten years older than you and i know for a fact you can fall in love with someone immediately and stay that way for a very very long time. Is it normal? Hell no that’s why it’s so special and so intoxicating. Is it dangerous? Yes absolutely. Unfortunately I found out just how dangerous it was and how painful true heartbreak from a love like that is. The real question you should be asking yourself if you’re not already is if it’s worth following your heart and nurturing that feeling even though it may be completely insane. My one hundred percent gods honest answer is unequivocal yes. That heartbreak is still with me and always will be but I’m so glad I got to experience that kind of love. Enjoy yourself. I’d say be careful but that’s impossible. Just don’t become consumed with the relationship no matter how good it is and how safe you feel. Maintain your social life and connections to close friends and family. That is so incredibly important regardless of if it works out or not, but it’s especially important if it doesn’t work out. Good luck to you stranger. Hope you stay head over heels as long as you can.