Zaheer Combo tips?

Hey guys I’ve been maining Zuko lately and wanna try out Zaheer, I’ve been trying to do his a.b,c, back c, into flight b and glider and then Ghazan support on the ground (I chose Ghazan as his support character so the move comes out faster) into forward C to get them off the ground and get hit by the support. But I swear there has to be something im missing cuz for the life of me I cannot never connect the assist or the otg with the back c after the glider. Does anyone have any tips for combos with Zaheer or how to pull of this combo? It’s the one that Globku mentions on his Zaheer guide on YouTube and I cannot find any other Zaheer combos or combos routes with his assists, and I don’t wanna have to only stick to a,b,c, qcf c, c forever I really wanna incorporate his supports into combos but it really feels impossible. Any tips? (Please don’t hit me with the “uhhhh have you tried getting good” or stuff like that I’m genuinely asking guys 😭