If you change your ID, you will lose access to updates for all previous purchases. I suggest you contact Apple ID Support to see if you can correct whatever problems you are having with your current ID before you consider changing your ID. If that fails, I'll post some suggestions below.
Apple ID Support
Apple ID Support (2)
Apple Support by e-mail or chat Select your device, Battery, Power and Charging, then Power adapter not working to get a chat option. If the initial contact can’t help you, ask them to have someone who can help contact you. If you need to talk to them, ask them if they will do a Skype or FaceTime with you.
Apple Support using Twitter
Or fill out and submit this form.
There may be some data loss, but you can minimize it. If syncing photos with iCloud, ensure Optimization is turned off in Settings/Your Name/iCloud/Photos. Then make sure full resolution photos are on the device. When signing out of iCloud, if asked whether you want to retain data, choose yes. Messages conversations will be lost if they are addressed to the ID. See the article below for other places that the old ID should be removed. Also see Winston Churchill's response in the below discussion
Apple ID – Create
How to transfer all files from one iCloud account to another
Apple ID email address or password - What to do after you change
