We can often put too much negative emphasis on 'doubt'. We know there are countless times when we shouldn't have doubted ourselves and plenty of reasons often exist in the present where we should feel less dubious. In an area of your world now, it appears you can gain much by being a tiny bit doubtful in some way. Where you feel a need to be hesitant, heed it. If something appears too good to be true, then chances are, it is.
... or select your birth sign