Bloody good for you! that's a big step you have taken and one that will help you a great deal.
i did it 3 or 4 years ago.
It is NOT the golden bullet you will hope it to be, but this is because there is no magic want to make you feel better, or to protect you from bad men in the future. What it does show you is what is not healthy and why.
I know that sounds obvious to some, but the fact of the matter is that we are conditioned by our abusive partners (and parents/childhood prior to this too) so we expect to be treated poorly. being treated with respect, love, kindness and consideration is alien to us and we don't feel comfortable with it. We don't know/think we deserve any better.
Some of the weeks will be REALLY hard, but the harder they are for you, the more important they are for you, if that makes sense. Doing the FP in person is FAR better than doing it online, but either course is better than doing nothing.
If you have any queries, or want to talk about your experiences (being mindful of the privacy of others in your group, then this thread is a great place for you.
I used to consider the FP/Therapy/DV support groups I did following the end of my abusive relationship as a kind of insurance exercise to help me prevent falling back into another damaging relationship.
As I say, it's not a magic wand, it won't make all the 'bad people' go away, but your confidence in being able to spot them better. The added confidence (IME anyway) DOES seem to repel some abusive types somehow. Not failsafe, as we will still be attracted/triggered by what we know, so move slow, step by step and think things through and weigh things up.
I would suggest looking at cognitive behavioural therapy too at some point as it teaches you to analyse your feelings and detach from them so you can get control back.