I want to leave my job?

i do like my job but ive got to the top and now i want to try something new, id love to take a home course while still working as i need the money but i dont know what qualifications are good and cant find anything reasonably priced, can anyone suggest any good distance learning companys, if i find the right course i am willing to save for it, but i tried to do a home learning course before and the tutor dident help me cos she never returned my emails or calls i dont want to spend the money and have the same bad experience, any ideas anyone?