you most definitely need to work on that range.
as for staying alive. I highly suggest you use your RED Quiver and lock it in order to heal yourself to stay alive if that troubling you.
later on you can lock to Magic arrow for a bit faster kills.
btw. im pretty sure this person in not in reboot. cus at 200 you should have 100% innate damage just for being in reboot if im correct. 1% for every 2 levels?
EDIT: I suppose nobody has said how to increase your range so here is some simple methods.
1. Make link skill mules.
2. fix your legion thing (forgot the name) for some extra stats
3. take advantage of the current event - free rings ( everyone should be getting 5 for thier alts )
4. dalies - Arcane force daily since your already in the area. that gives additional dex and more arcance force = more damage in that area
Fyi: I mained bowmaster since newtie grinding was endgame so I know all about being squishy hue hue .
Hope this helps
And a Carry is someone taking you on a boss run that you otherwise cannot do yourself.
since most people solo everything nowadays there isn't really "parties" anymore but usually
some OP person will " carry" you through the boss to help you out. they don't necessarily need to be OP tho. but you get the point