Feels like I'm 15 again

I'm in my early thirties, bisexual/queer and just ended a decade-long relationship with a cisgendered man. I'm starting to date women but haven't had sex with a woman in a decade and didn't have a lot of experience even then. I have always been a visible part of the LGBT community and most people assume I'm a lesbian, which makes people think I have more sexual experience with women than I do. I'm basically nervous about not knowing what to do anymore and being bad in bed. Questions are as follows: Should I disclose this lack of recent experience to the women I'm starting to casually date and have sex with? How can I stop being so nervous, which I know won't help? And: what does real-life lesbian safer sex look like when you're an adult and not a 23 year old with no sense of risk?

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