[Rivière]

I think it's great that you want to be more open about your sexuality. I'm not sure if you want to come out so that more people at your school know, but if you do, and this isn't to put you off but to be realistic, not everyone at school has the maturity or the ability to deal with things that are 'different' to them. While sexuality isn't as different as many make it out to be since we all have likes and dislikes, certain things such as sexuality are often considered outside of that boundary. You said that you don't want to be bullied again, don't give them a reason to.

Ultimately it's up to you whatever decision you make but remember as Cassie has said, your sexuality is yours, it's not anyone else's business and I understand that you want to be more open about it, but sometimes being open in a certain environment is not always the best idea.

If you do decide to go ahead and tell more people, see about telling some of your close friends besides the two you've already told, or perhaps other family members besides your mum and nan as they clearly don't seem to understand your situation. Once you've gained a few more 'followers' for lack of a better word, you could then consider opening up to a wider scale of people such as some teachers or something similar but remember that not all adults are accepting either.

One thing you could consider is waiting until you've left school. I know 2 years or so may seem like a long time to wait, but if you ever decide to go to college, there's going to be a lot more room for openness as many have LGBT+ groups and all sorts as well as a much less of a risk of being bullied over your sexuality, if you ever did choose to become more open about it.

Finally, and just to set your mum and nan straight, there's no such thing as 'acting gay'. You can't stop acting who you are and nor should you. You just don't have to talk about it is all.