You have to be able to keep the Drosera's "leaves" moist or it will be unhappy. My home was too dry for it. I may try another when we get a greenhouse. Carol

My D. Adelae is creating many plantlets...
It just got sunburned on my window ledge more than a week ago but it seems to be recuperating. I think a saucer with distilled water should be enough. How long have you had it for? There are many different species so maybe some are easier to grow.
I think when leaves are happy and there is high light they get more reddish coloration.

gnats seems to be attracted by it and many get trapped and get digested pretty fast.

My Pinguicula Moctezumae gets gnats as welll. not as many but propagates easily.
You could try that. I think it requires less humidity and to slightly dry between watering. and it is less finnicky about distilled water. I read you can propagate it by leaf cuttings [you need to use a healthy / new leaf and get the whole leaf just right off the stem]