I need some reassurance 😭

I’m 15 and I’ve barely masturbated. I tried when I was 13 but I just couldn’t get into it, the whole experience was really awkward. Now that I’m older I wanna try again but I still feel weird doing it even though it’s natural. I think I’m mostly just scared of a parent walking in and having to talk to them about it 💀 Any tips or tricks to help me get over it?

(My parents are out most of the day at work but I still have 2 older brothers who are at home and I REALLY don’t wanna have them come in. Also my parents won’t let us lock our doors iN CaSe oF aN EmeRgEnCy 😭)