I'm a huge fan of https://cronometer.com/
If you're just tracking macros (and don't care about the rest of it) then it may be overkill. But sometimes it's nice to know if you're deficient in zinc or omega-3 or whatever.
I love the ambition man! You can totally do it!
What's your Total Daily Energy Expenditure (TDEE)? If you don't know you can find it out at https://www.omnicalculator.com/health/bmr-harris-benedict-equation
100 lbs in a year equates to an average of about 2 lbs of weight loss per week. Which means you'd need to average about a 1000 calorie net deficit every day (eat 1000 calories less than your TDEE).
Your protein also looks good. I've heard you should aim to get at least 82% of your bodyweight in lbs as grams of protein every day. (360 * 0.82 = 295.2g of protein, so you aiming at 316 is plenty great).
Without knowing exactly what your TDEE is hard to know how much weight you'll lose and how quickly, but your protein definitely looks good.
You don't sound really like an ectomorph if you're gaining easily weight on legs and butt. Sounds more like feminine fat distribution, which I also used to have.
Also, your weight doesn't sound like much.
If I were you I would go for maintenance calories or a little above maintenance for a time and see how my body responds.
Based on your stats I would suggest something along these lines: Carb: 230gr Prot: 130gr Fat: 65gr Total Calories: 2025
If you really want to lose weight then again I wouldn't try something below 1800 calories. So my recommendation goes like this: Carb: 120gr Prot: 170gr Fat: 70gr Total Calories: 1790
We have created an app that helps you create diet plans based on your calories and macros. Part of it is to suggest macros based on your goal and your current stats.
It's called Dutrition. Let me know if that worked for you