First credit card

So I will be 18 September 24th I just got my dream job at a Salon 🙌 I have saved $1789 for when I have to move (October 1st) and I am still saving. I want to get a Credit Card for emergencies ONLY (I'm very responsible with money) my Bf just got his job today as well and we were both in foster care and now we are staying with two separate family members temporary (they made that very clear) so we are looking to get an apartment. Studio or 1br because I can't seem to find people to rent rooms who accept couples. So can anyone give me any advice on credit cards for a rainy day?

Thank you!

No rude comments please