Yeah, low star and low relic on Negotiator/GK aren't helping you at all.
Like others have stated, I don't use HT with my GR fleet. I start with 5s (r4), Ani(r7) and Rex (g12), then reinforce with Plo (g12) or Sarge (g12) depending on how my starting ships are doing with health and debuffs. Then if i lose someone i bring in Snips (r4). With this team/strategy i can take 1st every day and never fall out of the top 20.
Anyway I recommend that you get your star count up on Negotiator, spend crystals on a refresh every day so you can climb higher, and join you fleet shard chat.