All this exercise and not eating how I usually do is really draining me. I feel so tired even doe I've just had a nap…

All this exercise and not eating how I usually do is really draining me. I feel so tired even doe I've just had a nap and I can feel this isn't a healthy way of loosing weight. But I just don't no what else to do. For once in my life I'm so dedicated to loose weight this time and I don't want nothing to come between that🙄🏃💪