Now, it is time to leave your truly room due to certain reason! When you apply new job then you cannot stay at your home anymore due to distance between your home and new office, surely boarding room is your new place, right? Even though you have chosen comfortable environment and get many facilities, but it does not mean you really enjoy your days. I am sure if you think for changing its design, so you are comparing some . Does the owner allow you to do some changes in your room? If you say yes, I think this is very good then by you start design it step by step.
No, you should not hire professional designer because this will spend much money. I think you can begin it with your own skill. There are some important and big furniture, so you must install it first. This is done to ensure if the space is available for entire big furniture.