A portfolio approach is essential superbean. Find a few to add to your armoury. Tony mac is a decent shout. Keep strict records and at all costs protect your bank. Good advice I recd many moons ago was to wrap it in cotton wool and keep it wrapped up.
I have several systems and record everything on the staking machine as well as keep excel files on each.
When one slips below my expectations it’s removed to a watch list. Above all take your time and good luck