Wir zwei sind noch ziemlich jung und deshalb kennen wir diese Sorte von Problem nicht.

[Duffzig]

i know a lot of words can mean “therefore”. could i use a word like darum or deswegen instead?

[anon94972132]

You are right.
In this sentence both “darum” und “deswegen” are just as good as “deshalb”.
That’s generally so. Only in very special cases you cannot exchange these words.