you shouldn't procicute yourself over selling some stash Wayback when there was an uptrend. at a point in every one's life there is that tempting sensation that make you feel to sell off, and you might end up selling some stash but that doesn't change anything from you. let by gone be by gone. what matters is how you where able to make some corrections and still keep to the rules. by now I know your wallet will be like a straw berry, waiting to chop off. LOLs
Exactly, Bitcoin investment should be made based on self conviction by staying objective and think long term because Bitcoin will keep maturing and adoption growing steadily of which patient and due diligence remain a vital key, it is a new world of digital assets and decentralized finance.
Approach based on predifine criteria tremendously helps remove emotions driven decision making, one should continually refine investment process based on lessons learnt by remaining flexible to new information.