Their system isn’t set up to realistically accommodate third parties. Without actually overhauling the entire electoral system (something neither major party wants) the only way to get any third party representation would be a massively coordinated grassroots campaign that would require a huge amount of funding to overcome all the media attacks it would suffer.
In effect, as the system currently works, a third party vote is a wasted vote unfortunately.
I learned that diagnosing and fixing your washing machine yourself is surprisingly easy (for most issues).
If you have an older washer and have never taken it apart to clean it you’d be amazed by how much gunk there is in there. Clothes feel so much better after giving the tub a thorough clean.