As of now if we see in IT field, you are a raw or fresh hand with no practical knowledge. Yes, you can go for ABAP, as it has ample growth scope but it all depends on your taste, choice and calibre. First of all you have to locate an authorized centre where you can start learning ABAP, and ensure that they provide enough hands on experience during the training. Also assess there capability in providing an opening or opportunity to start your career. Seek advice about the learning centre from the people who have already done learning from there. good luck!.