Help with anchors and keeping aware during WILD

Hey everyone

So, now that I'm going to try to get back into lucid dreaming (as long as impending school matters don't get in the way), I definitely want to try out WILD and hopefully make some actual progress unlike last time.

The other day, I think I may have had an accidental WILD using my brother's snoring as an anchor, which sounds strange (and it is) but I kind of understand the process behind WILD a lot better now. Either that, or I know how I got into a short LD in the way I did at the weekend.

Basically, I was falling asleep normally (except this was after a hectic day and I was quite sleep-deprived so I was going to bed a lot earlier than normal), and once I got into sleep, I kind of realised a weird noise was still there which made me think 'Oh shit, that's my brother and I was awake just a few seconds ago', and then I just tried to rush myself into a proper LD without stabilising the dream or anything which was a bad idea, although every mistake is a learning point :)

Anyway, I had problems before with WILD and I still have them now which I'm hoping a more experienced WILDer may be able to help me with. Whenever I wake up, I usually don't stay up for that long, just normally take a quick trip to the toilet and come back to my room to fall asleep within a minute of waking up (although last night I had a look at the blood moon which was cool :D ), which means I constantly fall asleep due to lack of concentration on my WILD anchor, which is just me repeating a mantra in my head that I will stay aware when I sleep.

I could try to stay up for longer but often I find that this doesn't really affect my concentration on the anchor and I still fall asleep in the same amount of time as normal, or if not, I stay up for way too long and have trouble getting back to sleep.

I don't really know what I should change my anchor to because it's clear to me that my current one isn't working for me. I live with my brother and mum so any ideas of anchors or anchors that work for you would need to be suitable for me to use if I have to be considerate of other people trying to sleep too. If you have any tips on how to improve my concentration/awareness while WILDing as well, they would be great because if I could improve my awareness, I might still be able to continue using my current anchor.

Thank you to anyone who can help!