I have two suggestions I think might help.

1) look for (beginner) skills clinics in your area, maybe ask around at the local shops. You may even be able to find a women's only one if that's your cup of tea and will make you more comfortable. These clinics go over things like: getting over logs, shifting your weight, navigating switchbacks, precision steering, etc.

REI does these from time to time if you have one nearby, along with a lot of independent coaches and shops.

2) talk to your group riding buddies. To them falling may be part of the game (it is, more or less, something that happens when you ride technical single-track often) and they may not have even thought you wanted advice (people fall even when they know what they should have done or what they did wrong). It's also possible that they were hesitant to give advice. A lot of times people, myself included, react negatively to advice given right after they've fallen/not quite succeeded at something. If you communicate clearly to them that tips, both before and after crashes, will be greatly appreciated you may find a few of them start piping up, hanging back so you can try something again, etc.

That they stayed with you and kept you with the bunch at all indicates to me they really are a good group of people to ride with if you give them another try or two.

Otherwise watch and emulate, and don't be afraid to get off and walk sections you aren't ready for. There's no shame in that. Everyone does it from time to time.