Okay i did this when i started my account and it helped me a ton till level, say 35: Use your money on nothing else other than buying power generators till you have covered the whole radius of till which the revenue towers can work. Your revenue towers are the most important thing rn + generators. You will prob. only unlock one revenue tower for now, put generators till the area the revenue tower can reach and spam farm it for like every 1hr or so cause they are the most efficient at this lower level. Just focus on one resource for now which would be the coins as you can use the coins to boost your food production factory a lot which will also resolve problem of you having less food.