would love to join and get into end game content as someone thats new and only done some SMs content wise

The easiest fix is setting your core usage for your BitRaider and SWTOR Launcher to 2 cores. This is the reason why newer PCs have this issue but older PCs are just fine. Let me know if it helps!

This is definitely a case of terrible luck. It isn't a bug just that you have some bad luck. Sorry. Hope your luck improves!

There are many pvp gearing guides from good players. All it takes is a quick google search. Look on youtube there are many patch 4.7 guides there!

Adric_The_Red is correct. If you delete your character and your items/mounts are in the collections it should be fine. If they are in the inventory or cargo hold, etc they will be deleted along with the character