Like you Dolce my experiences were mixed.
Just after my father died, although at the time this had absolutely nothing to do with the visit to the psychic, I was mending a standard lamp for Mum which Dad had promised to do before his very sudden and unexpected death.
A friend who wanted company, called for me to go with her to a reading.
At the medium's house, I sat in the kitchen having a cuppa with her husband whilst my friend was having the sitting.
When she came out, the medium beckoned to me but I said, 'Oh no, I was only here to keep Kathy company.'
But she said, 'That's all right, just pop in here a moment.' So I followed her and she said, 'You Dad says thank you for mending that lamp for your Mum.'
Kathy didn't know about the lamp so she couldn't have said anything.
I was also once in a 'development circle' - 25 years after the above event and somehow seemed to get everything right and was told I was a gifted medium myself but it was absolutely exhausting, I used to come home completely drained of energy and had to go to bed! So I gave that up despite my apparent successes.