Don't worry about it. And trust me - I was in a similar position.
I transitioned whilst I was still at home when I was 22, with two brothers the exact same age as me (I'm a triplet), so keeping them unaware was hard. But in the end they were accepting - they knew that at the time, I was depressed, so whatever made me happy received their support. Hopefully your mum and your flatmates will think similarly.
I had never even contemplated any of that stuff too, but in hindsight, it would have kept me occupied and also gave me a better starting point.
But there comes time when you have to take action and take control of your own life. You're right - "maybe" isn't good enough. Even though its daunting, sometimes you have to take a leap of faith and just go for it.
Can I ask, how old are you? If you're of age, then you shouldn't have a problem securing a therapist on your own, without your mother's intervention.
Also, don't worry about offending me! And, if you want, feel free to PM me 🙂 I'm more than happy to talk to you privately!
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