i also struggle with this a lot what has been useful is to put alarms if i dont eat something and 1200 i get hangry and my head hurts and cant concentrate so i put an alarm at 1200 take a break from work and eat something i also try to have easy and fast foods available like instant ramen and i just add some spinach or an oatmeal cocoa shake chocolaty flavor but with filling oats or some quesadillas   im also addicted to chocolate so ill try to eat other foods and add a little chocolate instead of eating the whole bar like yoghurt with fruits and chocochips   i also was wasting a lot of time and patience in social media so im mostly abandoning facebook only there for swapsell groups and in twitter i have lists of the themes i like fanzines cinema etc so i try to only see that and not the general drama   i like fanzines a lot so i made a personal fanzine with my resolutions for this year as well as the books and movies i want to see i printed them and every time i dont know what to do i look and the covers and decide what i want to watch for me it has been useful to have my watchlist printed physically and not only in my mind  computer so i have more clarity about how i can use my time in fun activities and to finally see those movies ive been wanting to  also having a list of hobbies  activities is useful i try have the materials ready to those activities so its easy and i dont have to think too much like i have everything to do watercolor in a box the watercolors some paper brushes a water container etc that way i just grab the box and start drawing  hope this gives you some ideas for yourself take care