How can I be happier?

I’m a 19 year old boy. I work every day on my lap top because I am working to achieve a goal. These days I am just not happy, yet I am not depressed either. I have a nice family, it’s nothing bad like, nothing “deep” is bothering me is what I’m saying. Life is just dull right now because I must keep disciplined to not hang out with my friends so much. I have plenty of friends, a nice house, am healthy and all that, like i said I am not depressed or anything of the sort. And please don’t tell me “you should hang out with your friends more often and Let loose”, please don’t tell me that because it won’t happen. (not to sound rude)
So, my question to you all is what are some things I can do to be happier on the daily? (I don’t smoke or drink or anything, and I won’t.)
Tell me what you think I could do and maybe should do, and then tell me what YOU do to be happier on the daily. I know there are little mechanical things throughout the day that you do that make you happier, like for instance making sure you have that ‘nice warm coffee’ in the morning, or making sure you ‘watch your show’ at night. Or maybe it’s about perspective? Anything and everything, so again what you think I can do to be happier in general and what you yourself doe very day to keep happy.
Anyways all inputs are greatly appreciated! thank you!