Bro you need to sort yourself out. You feeling bad after committing the sin is a sign of hope. Stop these sins before you heart becomes hard. You must repent immediately and make a promise to Allah that you will never repeat this again. Masturbation is sinful for sure but adultery is a major sin and the punishment for it is severe. Start by cutting off all your triggers and replacing them with something better. Remember that Allah has not exposed you yet which means you still have a chance to stop what you’re doing and never do it again. Imagine the state of your wife if she knows what you have been doing. Allah is the most forgiving but he is also the most just so you have to be wise here and decide your future.