I'm sure it will easy to get back on track. I suggest that maybe you start with grounding/Channeling/Centering to gather the energy. Maybe call upon your God/Goddess to assist you if you don't have any Deity it will probably be best to start with meditation and the other things I have mentioned.
Meditation helps quite a lot. Seeing that you are starting all over again, you might have changed/grown into something else, your likes and dislikes might have changed over the years, meditation/ spiritual guidance will help you "find yourself" again.