alright so first of all, are you high enough level for cantina/Galaxy Wars? Will reply based on what you say to that.
As you have it now, your light side team should be Windu as a leader, Consular, Fisto, Chewie, and Jawa. if you want more defence have chewie lead instead of Windu
Your dark side team should be Savage Leader, Talia, Royal Guard, Geonosian Soldier and IG-86. FOTP is tempting but at his star hell be one hit by most things.
If you can do Galaxy Wars, you can farm shards for geonosian soldier(highly recommended) IG-86, and a powerful lightside healer/attacker called Luminara Unduli. Also Captain Phasma a strong dark sider leaders who can help your characters attack multiple times.
If you can do Cantina, get shards for Qui-Gon Jin as he is possibly the strongest jedi in the game. For dark side start farming for either Boba Fett for damage or Old Daka for heals.
Once you find a good team, farm them up to get as strong as possible.
hope this helped!