Great idea, but do some shorter tours first. I had never done a tour longer than 3 days when I finally took my bike to Europe 2 1/2 years ago. Liked it so much I went back the next year. Both trips were 18 days, including flights. I found out that there are low points during solo touring, usually when it rains, but there are also days when the scenery is boring, you get lonely, or you get a little sick of packing every morning and looking for acceptable accommodation athe the end of the day.
Would I still condider a much longer tour? Yes. The highs are much greater than the lows. But I would be better prepared mentally than had I never done any touring. Would hate to see you sell your house, then decide you had enough after a month.