even with the test, you're not experienced enough yet for it to do any good. For the record - I'm pro-steroids, but trust me; you're not there yet. Nowhere near.
And there is nothing you can do in the first few weeks of starting the gym that'll make you look significantly different in 8 weeks unless you started out hyper-morbidly obese and starved your way to massive weight loss.
Your diet is miserably low in fats and vegetables. This is a good way to feel like shit. Lots of people get in shape not eating veg (although it's not a practice I'd ever recommend) but the fats thing is important. Ideally you would eat vegetables every meal but some people just can't be convinced.
Sub out the chicken for beef every once in a while, cook in good quality oils (not sunflower oil or any horrible processed shit like that - use olive oil) and eat more whole eggs. An avocado or two a day wouldn't hurt either.
Also, that 100g of oats meal in meal 7 needs a protein source. Have protein with every meal.
Follow that advice, give it 5 years and see where you end up. Yes; I am entirely serious about that timeframe. You have your whole life to look jacked on holiday, but it's not going to happen in 8 weeks.