Age : 20
Weight : 81.4kg
Height : 5' 6.5. 1.69cm
Bmi : 28.5
Body fat :17.6%
Body fat mass : 14.3kg

I am getting back into the gym but need help with a gym routine and a diet plan that will be good help.

I am aiming to get bigger but more defined, lose the belly and fat in the process

Many thanks