I would say volunteer if you can. Or join a temping agency (or 5) ring them every week until they give you something, even if it's just short term covering 2 days sick or something. Take anything. Cleaning is not a bad place to start, and if you prove to them that you are reliable the chnaces are that they will send better options your way. You can tell them that you are interested in care or school and they may remember that and send you there if the opportunity arises. Just showing your face at a school can help, and you pick up LOADS about a place even in a support role. To further your chances I would get a CRB check done. Good luck!