I feel quite presumptuous to put my 2 cents but here I am speaking from my own experience. Even custom draft makes initially presumptions about your figure and sometimes you can make things worse if you don't exactly understand your figure in relation to the draft or what you need to archive in the draft.
You can bend any draft to your figure, the only difference is the amount of the work you have to invest and how much you need to change. An ideal draft works for you, not against you.
In your place, Anna, there are several possibilities how to get to this ideal draft quickly.
Do you have slacks or jeans which fit you really well? One way would be to copy these. It is a good idea if you don't know how your ideal draft should look like, if only to get a look at the result.
You can make adaptation for the style to the draft after you have it on the paper. You could even go half way only - to copy the dimensions from the slacks for your draft. I mean to follow the draft method but simply taking down the numbers from the slacks, not from measuring yourself. Possible problem: you'll copy any problems your slacks have and as always, have to work carefully and precise. Such draft still needs testing, but should avoid big errors.
Take not only waist and hip measurement, but high hip too, in between these both. For you, this will be probably less than the pattern assumes, for me it is more
If you have an disproportion between front and back (the seams end always too much in front or too much in back), take these separately when measuring if you go this way or notice how much you need to move the seams (add or subtract from the front and back part).
The method of copying dimensions from well fitting slacks (or any other finished part) is not bad generally, I find it easier this way not to deceive myself about the numbers - and some dimensions are easier to take or check this way. If you have somebody to take your dimensions, you don't need it, naturally.
How well does the pattern from your classes fit you? It is worth to manipulate is, or is it better to start again?
And how good are you at pattern manipulation? Sometimes, it is easier to take ready made pattern and adapt this. Be careful from where you start - it is, at least for me, easier to make the pattern bigger where you need it than to make it smaller, except in very few cases.
Personally, I would make quite close fitting trial garment sit at natural waist, even if you don't wear your slacks there. Lower waist can mask some fit problems. As soon as you get the trial fitted really well, you can change the style easily and lower the waist without problems. For the same reason, take a draft with darts. You can eliminate the darts later or change it, but for trial garment these are the best. And don't forget to wear your trial for a longer time at home, don't forget to sit and work in it.
You are not alone - just now I have fabric from the bottom of the bargain bin waiting - I need to make and fine-tune new slack draft for myself.
If you have several well fitting trousers of any type, turn them inside out and look at how the front and back part looks like. It should give you an idea what you want to archive. Think about possible problems this trousers have and what should be changed in the draft. This way, you can get several trials without doing the work yourself and concentrate only on the problem areas.