I have acne & can I use an Ayurvedic soap free acne face wash which contains neem & turmeric as main ingredients and it has also no harmful chemicals?

This sounds okay. Dr. Baker is one of my favorite teammates here and he's almost certainly right about when it's okay to use ayurvedic remedies as your major treatment and when they're only adjuncts. Retinoic acid is a mainstay of acne treatment and as a vitamin, it may also appeal to you. Enjoying your body is not a health problem and not the cause of your acne. Embrace who you are and be healthy. Best wishes.
of course. Neem and turmeric are natural antimicrobials that can be very helpful for acne. Ps masturbation is not a "condition." it is enjoyed by nearly all young men and is absolutely nothing to be concerned about.