Double-Think

Making an informed decision is one of the more difficult tasks a person will encounter in life, especially if it is an informed decision about death, since that appears to be where the choices cease to happen.
I would like to purpose a thought experiment.
The world is maddeningly filled with Religions to believe in:
Abrahamic, Indian, Iranic, Taoic/Far Eastern/East Asain, African diasporic, “Pagan” Historical Polytheism/Indigenous/Traditional, Nonsectarian and Trans-sectarian, Spiritual movements, each with its own fascinating and dubious history and each including a considerable variety of subcategories to choose from.
In addition to the traditional religions we have the new religious movements to consider as well.
At this point I think it’s safe to say we have established the entire spiritual catalog, each with its own thick tome to sift through and aide in the decision making process.
One difficulty with making a decision on a religion is that it seems so final, you only get to choose one.
Except for the Jubu who have combined two major religions into one amalgamation of what was previously thought to be conflicting faiths (and they are not the only ones).
This brings us around to the final series of questions in the thought experiment.
Some of the religions listed in the “new religious movements” are the result of combining separate belief systems. How many religions do you suppose one can combine before there are too many structural conflicts?
The dictionary defines faith as: A belief that is not based on evidence.
Without evidence every possibility becomes an option therefore one's beliefs becomes limitless.
Would it then be possible, with all the conflicting beliefs found in each individual religion, to have faith in them all at the same time (including atheism and agnosticism)?