So I did a Githyanki, drop Charisma, Intelligence and Wisdom pump STR Dex and Con STR17 Con 15 Dex 14 then Int will be at 9 then Wis and Char 8 you can choose of the 2 to put to 10 I chose Charisma to have better talking, rush through use a longsword and a bow there are a couple ways to cheese the Ruins, then the goblin fight do your best but the enemies will kill all the npcs first by the time you get to the gate you will be 3 mostly use magic missle and Thunderwave. You can get the intel headband from the 3 trolls really early on to bring intelligence to 18 and by level 4 you will have 18Str and 16 con and 18 intel 14 dex and 10 char and 8 wisdom and its just a lot of misty step and waiting to use thunderwave to knock as many enemies off ledges and using action surge and magic missle to kill targets. resting a lot to keep your spell slots and being patient and waiting. Also use Leazel's Chest piece just steal it from her in the tutorial ship. Most fights just require you to stay back wait for enemies to group up lead them to ledges and blast them off. For smaller fights you can just use double magic missle and then just use a great or longsword to finish enemies.
