to be fair you cannot judge a tipster by one or even 10 failed tips (all depends on the payout, f.e. i suggest 10 bets with 12:1 average odds that fail miserably,then i have 1 winning bet at 12:1 odds + and I'm in the green)
so the best way is not to invent a bicycle and do like every other tipster or site does: offer free tips,make them public,reach at least 55-60% success rate on a virtual 2x return
offer paid tips for a set period of time-profit
coaching people would involve teaching them basics first about banking,gambler's fallacies etc. etc. it is too much work with no guaranteed result
it is much easier,as I sad previously,just gain reputation and then provide paid services
good luck
