Need help making a team idk what to do

#1 thing to do is FOCUS. Decide your path and stick to it. There are short term goals (GMYoda, Thrawn, Emp Palpatine, etc) and long term goals (GAS, GLs). Have fun, but stay focused.

If you farm phoenix, farm all of them to 7 stars but not sabine because sabine takes longer to farm but you will need her for her ship.

For separatists, you really can decide between droids (B1 battle droid, B2 battle droid, droideka, magnaguard, general grievous) geos (Geo brood alpha, Geo soldier, Geo spy, Sun fac, and Poggle) or a team with a nute or dooku lead.

Geo brood alpha can be difficult because it has to be farmed from cantina node 8-D. Some other difficult farms are B2 battle droid from guild shipments and cantina node 6-D, B1 battle droid from fleet battles 5-B, General grievous from the shard shop and fleet store, Droideka from light side battles 8-B and maybe Sun Fac from fleet store and guild shipments.

your current setup is ok, but i would suggest sticking to one side(eg. rebels, phoenix, empire) instead of mixing them up. vader gains a lot of speed with an all-empire team and luke farmboy goes well with leia(easily farmable from many stores and the rebel event, i got her to 4 stars in 2 days) old ben, etc. some of these characters are a hard farm but in the end they're pretty worth it.

if you choose a dark side arena team then you should farm phoenix also, because it can help you get thrawn and palpatine, which go very well with vader. if you go light side then farm many jedi, and use them to get yoda. then you can use your jedi team and your yoda in squad arena.

honestly in the end it's your choice, i have a very mixed loadout of 3 dark sides and 2 light sides, and i still do decently well in battles. however i can't deny that having a side specific squad will help you a lot down the road.

Google Warrior's 5 Pillar Guide.

https://www.reddit.com/r/SWGalaxyOfHeroes/comments/ajtzdq/warriors_new_5_columns_f2p_farming_guide/

https://www.youtube.com/watch?v=_lsh22p8CnE

Its simple & its EFFICIENT. Its all about who is easiest to farm at early levels through harder levels based on who you have access too & what they do for you.

The best "Early" Game team to farm IMHO is Phoenix.

So make them your first Light Side Team.

Focus on the easy to farm 5 while still hitting the "Slow" farm of Sabine so you have her ship ready.

Other things to make sure you have done is a Scoundrels (BH) team.

Boba Fett, Cad Bane, IG-88 along w/ Clone Wars Chewie and a 5th Scoundrel is a good start there.

Finally, after Ezra & Hera make 5* get Kylo-U & Silencer up for Ships. Those 3 characters will take up your Cantina energy for a good Long time. But you want them all up at 7* for sure.

Phoenix will get you Palpatine & Thrawn which when combined with Vader & Tarkin free gives you 4/5 of an Empire team.

So by L70 you'll have a full LS team & the better part of 2 DS teams easily.

Which should have you clearing G-War easily every day.

4th Team will be Jedi, you have 2 from Phoenix & you'll have "Free" Consular & Mace from the Game.
You'll also want Old Ben, Anakin, & Ahsoka for Luke/Padme & you have Bastila/Jolee/Juhani for the Revans.

For getting Yoda its just whichever 5 are closest to 5+ stars.
Based on how easy they are, I suggest going with 5 of these 6.
Ezra, Kanan, Old Ben, Ahsoka, Counselor, & Mace.
And be farming Bastila-Jolee regardless, since they are used for Revan & she is awesome leader, they will just be slow at first so the other 6 are easier to get Yoda opened quickly.