Haircut

So i found out my mom had cancer in December (its gone now). Due to me stressing about her , I noticed my hair started falling out, i didnt want to admit it but finally i had to because it was just a mess. It’s gotten so bad to where i feel like i cant manage it anymore and its also kind of embarrassing because other people noticed it. So i want to cut it and just try something different. I want a short pixie cute cut. Im pretty nervous about it because i never had a short cut before. Are there any apps that’ll let you try putting hair cuts on your face so you can what you’ll look like? Sorry if its so long.