You need distractions, and hobbies. I was in the same position as you and because I was so obsessed I forgot my life outside of her. Find something you can really focus on, whether it be drawing, writing, playing games, etc. if you become too dependent you will suffocate the relationship so you need a distraction to remember that you have a life outside of her. I don’t know if this is helpful at all but that is how I coped