Yes indeed. Anyone can get through...
I did not mean to imply the "prototype D&D party" is the best. Sorry.
In fact in many situations it is clearly not the best.
However my suggestions were not meant to reflect "optimal outcome". I was rather more focused on "optimal D&D experience".
If the OP is new to D&D ~ or even experienced ~ often the prototype party....gives you the chance to play all roles during rolls be it puzzle solving, combat, crafting, role playing, and generally interacting with your environment.
So assuming your Paladinhood is cast you may want :
1) You the Paladin
2) Sand as your lawful mage type ~ he is very Lawful alignment compatible
3) Elanee as your Cleric Healer type ~ she too seems to be Lawful compatible to me with only minor objections as I recall
4) Neeshka as your rogue type.... from a Role play perspective I recall a number of chances to "admonish her" which would be in character for your Paladin .....
(minor spoilers Tomb of Betrayers and Warehouse immediately come to mind).
This will allow the Op to combat, to sneek, to open locks, to cast spells, to craft. Everything in the D&D experience.
However this is far from optimal in any sense and the OP should and will likely experiment with many parties.
Above all know this shard bearer... you are the one that must enjoy ! 