Oh it gets lots easier. Lots. Eventually it will become second nature to you and it will be just "what you do". And believe me, it won't take anywhere near 3 months time.
But just think - how much time have you spent wishing and hoping and longing to be fit and trim? How much time have you spent wanting to lose the weight? How much time have you spent not being all that you can be?
Time spent on improving your life - time VERY, VERY well spent. It's productive and useful and will accomplish something - a healthier and happier you.
Hang tight. It's so worth it.