Will changing my diet help me gain muscle faster?

I'm 19 I've been working out for about a year 5 days a week and i've went from being super scrawny to having muscle and Definition but still being skinny. I'm about 145 pounds and 5'10 My normal day is ill wake up eat a bowl of cereal or pizza or whatever left over from my family eating the night before because i work nights im never home to eat with them. So i normally wake up about noon then ill eat something small then ill go to work and get some fast food before i go into work at 2.45 like taco bell or a shake from kfc or something. Then Ill go into work and not eat again until 7.30 or 8 when i go on lunch and i normally get taco bell a xxl steak or chicken burrito then ill work until 10.30 get off go to the gym to work out until 12 get home drink a protein shake, and that's my normal eating schedule for the day, bad i know... So i was thinking that's probably why i haven't been seeing any results even though ive been working out hard five days a week. So, Im planning on eating a much much healthier chicken rice fruits veggies and a lot of it. I do not have the money to follow a full diet right now. But im gonna start making my meals with what my family has instead of buying fast food, So ill make hs and tomorrow im gonna make chicken and a salad along with a few sandwhichs for work. Do you think eating more and super healthy food will actually make a difference? I've never really thought about it since im skinny but I'm really starting to get discouraged so im hoping changing my diet will make a difference do you guys think it will? Please answer soon {: