I have my BA in sports therapy and along with that I did a minor in health & fitness focus.
I'm going to give you the most realistic response anyone can give you without knowing you or ever seeing you.
MOVE MORE, EAT LESS.
It's literally as simple as that, drink water and drink some more water.. eat your proteins for your first few months stick with only chicken and fish for your proteins you shouldn't really be into red meats yet heavily..maybe once a week to treat yourself to a nice steak and green dinner.
If you are eating rice or any other type of carb you NEED to be working out.
Stay away from pre workouts, the only supplement you should be worried about right now is WHEY PROTEIN, seriously. I live by whey protein, I'm 5'8 155 LB and 6% BF and I never took a supplement other than vitamins and whey protein in my entire life of working out.. buy some and mix it with water at least 2-3 times a day.
Cut out juices, soda entirely.. if you want something with flavor don't use the fake flavor packets for water they are nothing but bad sugars.. drink from true organic green tea.
As said several times above get myfitnesspal on your phone, you will enter your weight, height and age and it will give you a calorie intake count.. trying to eat 25% less than that if possible.
If you need help setting up meals or anything at all bro PM me for my disc I am more than happy to give you words of advice and set you up with a little meal plan.
EDIT** Also, 1 beer is like eating a piece of bread.. terrible for you.