Good for you!

You need to eat more protein (and more food in general). Eat protein, along with fat and some starches 3-4 x day and you will not be hungry.

I learned here that you should be eating 70-100 grams of protein per day.
Divide that into 4 mini-meals and I bet you will not be hungry.

If you are hungry, then you didn't eat enough protein.

Good luck.

You need to eat more food, period! More fat will help, but you need to ease into it slowly.

Agree w Crowlover that protein helps satiety!

Carbs are not evil, just get them from starchy vegetables (potatoes, squash, sweet potatoes) & fruit.

For example (What I might eat):

Breakfast: 3-4 eggs fried in butter with sauteed spinach

Lunch: burger with potatoes of some kind

Dinner: Salmon on a salad with fruit or dark chcocolate for dessert.

I agree with everyone else: you need to eat more. A lot more. And it's fine to have starch - try potatoes or white rice (if you tolerate it well). Don't try intermittent fasting or anything more complicated at this point; focus on getting the Paleo thing dialed in before you start getting fancy.

As for easy foods, a slow cooker is about as easy as it gets, if you have (or can get - they're super cheap) one. Throw a chunk of meat in there, turn it on and leave for school - when you get back, dinner will be waiting for you.

There is a teenage girl in my household who is eating just about the most pure paleo/primal diet I can think of. (Due to autism, and with buy in from the medical Authorities, she's on a very pure diet- better than mine!) Meat, eggs, meat, fish, salad of assorted dark greens and seasonal green vegetables twice daily- meat- no dairy, NO grains at all- - fruit is about 3 servings a week.

Lots of energy, no meltdowns, no pimples. Great health. Not a trace of acne. (and her sister and mother, both older, both still have plenty)

Okay- here's the thing I found when I first went "paleo" (back then it was Natural Only Aktins because it wasn't paleo yet.)

A sugar addiction is a sugar addiction is a sugar addiction. Go cold turkey for a few weeks- including the fruits. Especially the fruits! Get the physiological sugar addiction under control (yeah, you can be addicted to sugar on mangoes, orange juice, and apples) and replace the psychological with meat binging for a few weeks. For me it was cheese omelettes. Take 3 minutes to make, and I had probably 40 of them in 3 weeks before I got over everything. That and homemade beef jerky.

Unprocessed starches are okay after a while, but a lot of people- more than will admit it even in the paleo world- come in with a sugar addiction. It's an elephant in the room that the moderation approach can't see. Sometimes you need a week or two of extreme to get past old habits.

An extra bonus? you would not believe the difference in tasting sweetness in things after. We make an unsweetened coconut milk and wild berry ice cream that tastes sweeter and better than when I was eating 15 cent thrifty drug store scoops!