Monitor G-Sync Issue

#1
I just bought an Acer Predator XB241h which supports 144hz gaming, I think even 180hz. This is why I bought the monitor but stupid me didn’t do my research. The G-Sync feature means I can’t use 144hz over HDMI and both my laptop and xbox one don’t have display port inputs.
How can I solve my problem or have I just wasted my money majorly? https://tradevenue.se/
I’ve looked into an adapter but from what I can see without Thunderbolt 3 (which neither my Xbox or Laptop have I can’t get up to 144hz)
My laptop is an Acer Predator Helios 300 G3-G571 and my xbox is a Xbox One S. If you need any more details please let me know, thankyou!