If you want to bulk, then i would say just add 10g of protein to your current maintenance plan and see what happens.
But don't forget as a natty, you won't see the progress after a few days. Wait 4-5 weeks and see if you improve. If you do it right, you won't add any fat, just muscle.
If you think you're getting fatter, lose some protein again.
If nothing happens, add some slow carbs around your workouts. More carbs especially after WO. If you get fat on carbs, add omega3 fatty acids in the evening and morning instead of carbs around WO.
My personal advice would be, you stop ALL supplements now and try to get your whole protein intake through food.
Then you will automatically get more calories. You can add in some supps again when you feel your stagnating.
Try it, it works.

Just play around with your diet and food intake, everyone reacts differently. What i wrote worked very good for me, but might not work for you.