Your day looks very positive and encouraging. Starting a gym is not easy. You took the first step with courage and perseverance. This is truly commendable. You are aorking out under the guidance of a trainer. You starting this journey with your son is a beautiful thing. Ending the day with homemade pizza and family time makes it even more special. May Allah grant you health, strength and dedication, this decision will surely prove to be the best for you.