It's a tricky one.
I came out as bi at 40 and went to the gay clubs and bars near me as part of that awakening BUT there is wariness of women thinking they may be bi/lesbian after having been in a long term hetero relationship as it is also quite common to have been put off men due to the experience but only short to medium term which is where you're at still.
For me it was more of a being honest about who I've always been but didn't admit it to anyone but I knew myself. The first crush I had as a teen/pubescent was on a girl friend and so was my 2nd crush but then my next crush was on a boy and I felt so confused and it was still then (80's) very taboo, plus I was raised Catholic and conservative parents which didn't help at all. I was quite late getting my first boyfriend almost 16 and my dad actually said "thank goodness! I was beginning to worry you were a lesbian!" Which just confirmed to me never to tell him.
Clandestinely dated a few girls when younger (they were closeted too) and then met and married ex ( a man)
Then when that went pear shaped I like you went right off men (hardly surprising after what he put me through) but then around 7/8 years later when I was starting to "recover" I met a nice chap and dated him for a while.
Since then I've dated men and women but until I hit 40 I wasn't open about it. Then with that being a Milestone birthday I did the whole "where is my life going" thing and ultimately decided to come out - except to my father and I never told ex either, none of his business!
The last person I told was my dd as I felt it needed to be handled carefully and she was early teens herself at this stage so it felt quite scary
As it turns out she just rolled her eyes the way teens do and was like "so? Makes no difference to me long as you're happy mum. Plus I think I am"
So that was a weird/funny conversation 
You don't have to decide everything at once. You can also go on specific chat forums to discuss with other lesbian/bi women it's been a while since I have so they may not be around still the ones I used I can't remember the blooming names
Ease into it, don't rush yourself, don't be pushy if you're attracted to someone and just give yourself the time and space to work out what's right for you.
I will say there can be with some lesbians scepticism towards bi women generally and especially bi women who've had long term get relationships so be aware of that.
Hope you find your way