I have a 2015 MBP bought refurbished from Apple in Dec 2015. No issues until a few weeks ago and one day raised the lid and nothing happened. Waited a few minutes, turned it off and back on and it came on and worked fine. So at first this was just a sometimes thing, now however it is every time I try to use it (raising lid does not wake from sleep). I don’t use the MBP often, maybe once a week. I’m a heavy iPad Pro user. I have updated the MBP to High Sierra but the issue started before the update. I also have 1T storage with 944gb left. I’m an older user of technology but not a good fixer of issues. Any help with a possible fix would be greatly appreciated or is my MBP slowly dying?