First post here and unfortunately not the greatest start!

So i was gifted a Japanese Maple by my partners parents for Christmas. Always thought Bonsai was great and wanted to get into it, and I did some reading up on what to with the tree but i think i have failed?
I had the tree in a spot where it received morning sun, but no afternoon sun, and used a hand held spray bottle to water it each morning and afternoon as when i watered it 'normally' the water would just filter out the bottom of the pot and i was concerned it would not receive enough.
I only sprayed the leaves in the afternoon (not in direct sunlight) as i read the leaves dodnt like that and would burn.
I sprayed the roots on the rock, and the surrounding soil etc enough so it was moist but not soaked. So no more than a few pumps of the bottle.
Seemed to be going along fine....but then one morning i walked out to the leaves appearing as though they were drying out? Just did not look healthy at all...
Then i read also that overwatering (as well as underwatering) can possibly cause this? So i didnt water it and have left it for the last 5 days thinking that it might recover rather drown but i dont think its worked.
Im feeling as though ive lost the tree

Can anyone give me a little advice on what might perhaps be the cause of this? Or even advise on how i can tell if i have lost it or if it can be saved??
Grateful for any advice! (Please be gentle! Haha - i will also continue to browse these forums too as time goes on as im sure theres plenty of info and tips, however it always easier to start a new thread when you're new!

Thanks in advance,
Cheers
Chris
