Welcome to the forum!!! We are glad you joined us!!!!
We had a similar "learning curve". In June 2014, we purchased a 2010 Forest River Flagstaff 17 foot pop up trailer and immediately took a 3 week trip through 22 US States and 2 Canadian Provinces. Got to Banff and discovered that our furnace didn't work. Sold the trailer not long after we got back. In August, 2015, purchased a new 2015 Keystone Outback Terrain 220TRB. Now we had a working bathroom in the travel trailer!!!
Brought in the travel trailer to be winterized and saw our present "Home Away From Home", out 2001 Newmar Dutch Star 3852.
I feel your learning curve.