BED BUGS!!

Hii i need help.!!! My husband and i noticed a bug on the bed. We started checking our mattress and our surprised, we founs BED BUGS! I was freaking out because we have never experienced this. We don’t know where they could’ve come from. We got rid of the spring box and mattress. The same night. We do have carpet so that is my worry. We vaccummed for like 1 hour straight!! we sprayed alcohol everywhere! We went out and bought the Ortho Bed bug killer. We sprayed that everywhere, on our bed frame, carpet. Now my question is, how do we deal with this? how do we know we’re okay. We bought a new mattress and box spring, both are still wrapped in plastic but im so scared to even put them on :( PLEASE HELP