Ok, so Im not an older person. But I did LNA healthcareers, and I did it through Dover Rehab. Who will your instructor be? What time will you be taking your class and when? I can give you the lowdown. It does not include BLS, if you do it through them, it costs 50 dollars. Where I went to work after wards, they payed ME to take it. And it was easy and fun. Dover rehab is a decent place to take it, the nurses are great, some of the aids are iffy, but there are a couple of aids there that I took class with, and they should be good to work with.
If you start with longterm, you can handle A LOT in my opinion. You build quit a backbone doing that. Get some expereince there, and then go onto hospital. and no, 40 is NOT too old. One of the guys I work with, hes 37, hes an aid right now, and going to nursing school
. PM me if you want to talk about Dover! Good luck