My biggest mistake was nievety. Started in numis :/ Buying mostly perth Mint proof sets and singles. Sold most of it for 10%, 20% and sometimes 40% losses. Gained a little on some of the first coins in some of the series. An acquaintance then put me onto SS, then I realised the cost difference between numis & bullion. I am very greatfull to that SS member who in his wisdom helped me out, showed me the ropes and continues to do so. Friends, associates and family educating one another is one of the best gifts we can receive. 