How many gold stocks are enough?

Hi,
Perhaps you think this is a useless post, and if so please excuse me. However, I currently have 23 gold stocks on the ASX and am currently attracted to another couple. This is in addition to my other 41 non-gold stocks. You see, I am an investor who spends a lot of time researching and tracking ASX stocks. At present, I have a 67% to 33% split across gold producers and explorers by value (reespectively). In view of current market preferences, I favour producers over explorers but retain a number of explorers because they can turn into producers with a higher return. I have also been increasing my gold company holdings in view of current macro-economic conditions.
I am an investor and an analyst, I am not a geologist and I have not worked in the gold mining industry. Hence, I have limited ability to evaluate mining reports and look to the opinions of others. As a result, I value the opinions given on HotCopper from experienced people.
I am curious as to what others think about my spread of gold stocks and as to how they approach the sector. My strategy is to spread my investments with a limited amount in each stock as a way of managing risk when I am not expert in the gold mining industry.
So far, I have a positive realised return on my gold investments at 23% since Jan 1 2016 (realised, means that I have sold out on a holding and it does not account for any current holdings). The percentage is simply a total of the return on each sale and does not include any reinvestment factor or time factor.

Thanks in advance for any informed comment.