I agree with all the above. Buy a 'refresher' book from Amazon
and review those things that have gotten a bit dusty: IVs, foleys, wet-to-dry dressings, chest tubes, etc. All the procedural stuff. Also, most hospitals have Staff Development departments that will help you out. Since EMRs change all the time, that will be something you'll learn as a new hire.
I went back to acute bedside care after 12 years away and although things were a bit dusty at first, it all came back very quickly and I love being there. I worked with my staff education department and actually REQUESTED to spend time in pre-procedure, chemotherapy infusion department, and the ECC (ER) to practice IVs (both starts and just general management of the pumps). I also took every bit of orientation that I was offered. Even though I felt comfortable pretty quickly, being an orientee gave me time to ask every question I could think of, and I kept a small notebook with ALL the notes in it. Even though I've moved into more of a leadership non-bedside role now, I still refer to those notes when I get calls from new RNs with questions!
Please feel free to PM if you have any questions, but I totally agree with the above. Just keep applying and you'll get a bite. Also network! There may be some old colleagues who have a connection to get you in somewhere. Good luck!