The question you need to ask yourself is are you in a situation where you may be able to complete a degree? If so then this is the best approach. You would get some exemptions for the Diploma and this would be an advantage. Remember that whilst there is a lack of trained people today, tomorrow there may be a glut. At that time those with degrees will be able to position themselves in the best jobs at the best wages.
If you do start a degree program remember you can get a job and work in the industry at the same time. This is always good to do.
regards, Mark