It looks like you are extremely green. Is it correct that you currently only have 3 characters unlocked and they are all still level 1?
Loreck Avery's Profile on Star Wars Galaxy of Heroes - SWGOH.GG
The website, https://swgoh.gg/ is an excellent resource. The link above provides information on the account with the ally code you provided. If it is an accurate representation of progress, then you need to get through a lot of the PVE combat nodes to level yourself up and to also get training droids to level up your characters. Level them up as much as you can and then place as much gear on them as you can.