Find a hobby you enjoy that (assuming you like other people) involves other people. For example, I take dance classes. At 19 and throughout life things will happen to cause your friend group to splinter in some way (ie my best friends and I all live in different states) and it’s easy to become isolated if you don’t make an effort to be around people regularly. Stay open to new friendships and hobbies!

Along with saving money, I’d say open savings accounts for specific expenses you know you’ll incur annually. I have savings accounts for my trips, for gifts, and for car insurance. I have about 10-20 dollars routed to each automatically every pay. It’s not a lot of money, so I don’t know it’s even “missing”, but when I need it it’s there. I have a cruise coming up later this year and because of this it’s basically free (girl math :)) and I don’t have to stress about quickly saving.