Need advice creating meals after decades of restrictive eating

TLDR; I’ve been restrictive eating for almost 35 years. I need to eat more - and I need help planning out meals, while being extremely picky. My metabolism is awful. Gained weight since the pandemic and a hysterectomy - and it has me extremely down.

—————————————-

Wrapping my head around weight gain since the pandemic and a hysterectomy - has me so defeated. My sluggish metabolism has me exhausted every day. I need energy if I’m going to start exercising.

All the way back in high school - the nurse recommended I should go to treatment, but my father who was a doctor said he could handle it. It was never discussed again.

Between trauma and ADHD - eating is never a priority. My trauma makes me want to feel in control of myself - I’ll choose not to eat.
With my ADHD - I forget to eat.

This is not what I want. Most of all, I want to set a better example for my teenage daughter.

I think it would be best for me to find a way to do 6 small meals per day to help keep myself fueled properly through the day. I did that many years ago - and I felt much better.

BUT - I’m extremely picky.

I eat pretty basic food: fish, chicken, beef, pork, broccoli, corn, potatoes, carrots, cabbage, salads, dairy.

How can I create meals with enough protein each day - and that is healthy and tasty- so that I keep going? Obviously, meal prepping would be very helpful.

I’ve got to get my energy up to begin exercising to lose this weight - and because of my eating issues - the weight loss drugs are not an option.

I thank you so much for any advice you might have.