Damn, you really like these suboptimal builds huh? Part Fighter part Wizard part Cleric part Druid. You sure you don't also want to multiclass Monk? xD
If you need to wait until level 4 for the Wis ASI, then you should probably also go to level 5 in Fighter. Level 5 is a huge power increase with Extra Attack. Level 6, however, doesn't get you much*.
*Except it does get you an ASI/Feat, which I would recommend using to take (Spell Sniper or Magic Initiate) to get Thorn Whip instead of taking a whole level in Druid. (Btw, RAW Thorn Whip won't work with Extra Attack, although idk about in BG3...)
**Alternatively, as mentioned above, just take levels in Nature Cleric which gives you access to a cantrip from the Druid spell list.
