It's hard to believe that you're only gold and on a losing streak with KDAs like those. What logically jumps out to me is that you might be trying to preserve your KDA by giving up objectives that lead to you losing.
Normally, I'd recommend against playing support champs to climb. Support champs are team-reliant no matter what. You never know how good the other four people on your team will be, but you always know 100% how good you are. But your Taric is very impressive so he should get the exception.
Even if you're on a losing streak with Taric right now, I suggest you stick with it. 71% winrate over 42 games is pretty great. I one-tricked Mordekaiser for a couple months and went from unranked > silver 3 > plat4 pretty quickly. At one point I had a 79% winrate with Mordekaiser, but I stalled out and got stuck in G1 for a while because I lost a few games in a row with him and lost confidence. I switched to a few new champs but eventually I trusted that STATISTICALLY a 61% winrate on a champ is just bound to end up winning more than losing. Soon enough I got plat after going back to Mordekaiser.
So TLDR, have faith in Veigar Taric and Ahri. They have enough games on them that you know their winrates aren't flukes. As long as you aren't tilted, they should get you more LP than they lose.
You also might want to stop playing with %%%%%%%%chew.