If you don't play a lot, work only part of a map so you are not constantly in unfamiliar areas - should get the feel for the flow of traffic in that area quicker than trying to learn the entire map. If playing control, pick one zone to focus on. Try different weapons to see what works for you. I've found a blue (rare) pulse that has pretty amazing stats that is currently working for me - don't be dogmatic about weapon choices based on what anyone else tells you to use.

1. Use a primary hand cannon or pulse rifle with high impact or mythoclast 2. Use a shotgun on majority of maps with high range & impact 3. play control 4. DO. NOT run ahead of teammates and be the first to get taken out, play in line with teammates and pic people off, this isn't call of duty where you float around the outter map 5. Keep your distance and always use your supers and grenades in a timely manner 6. Always follow someone who popped their super for orbs 7. Always be ready for heavy ammo drop at 9 minutes on game time and wait for teammates 8. Use a hunter if u have one 9. Use any type of sticky grenade 10. If u can play with friends in a party and communicate, communicating wins games 11. Always hold the dominant point (A or C) and the mid point and HOLD THEM DOWN, Do not rotate and keep switching between A and C. ALWAYS hold down A and B or C and B 12. Kills count more than caps but a kill with 2 points is worth more than a kill with 1 cap 13. Defend your midpoint, kills around capped point is worth most 14. Have fun

Use the guns everyone complains about that's how I've had more fun

Stick to your teammates like glue and use your favorite exotic primary.

It's pretty do able, just try to join lower level people wih low grim scores

Keep playing. When I started my k/d was consistently around .8. But I kept playing and trying different weapons until I found some success. Now i usually go 1.25-2.5. Much more fun when you're winning!

Learn to enjoy it! What about it do you hate? I can try an address some of those things