Hey Cassandra, I'm really sorry to hear that you'e feeling so low right now. I'm a big fan of your YouTube channel and I love your videos, your bravery and positive attitude is something that has lifted me up when I was feeling down many times in the past. I definitely understand what you mean about just feeling beat...for a long time I'd fake confidence when around friends and in social situations but deep down I was hurting and felt like I couldn't really open up to anybody about it.
The best advice I can give you is stay strong and push forward and sooner or later you'll get through this dark period and start feeling better...I've found the moments when you're feeling really sad and upset about your acne can't last forever because little things in life like family, friends, etc will pull you back into a happier state of mind. It's just about enduring the bad times (trust me, I've been there) so that the good times can come round again.
I wish you the best and I hope you start feeling better soon, you're a beautiful person and even though you say you don't feel like an inspiration anymore...you have inspired many, many people on this site (myself included) and this is the perfect place to vent to people that will be able to understand exactly what you're going through.
I hope things improve for you soon!