If this timings correct, then even though you said 3-5 years, maybe something happens that enables you to do this sooner. You may end up reading for a friend at her house, then her sister asks for one, then her sister tells her friend about you and she asks for one....and this friend tells you her mum has a shop where she is looking for a new tarot reader to work in, she tells you that your a great reader and she thinks your mum would love you working there.
Just an example of how this could work out to be.