Better to not depend on others just follow the coinmarketcap.com for the upcoming probable price hikes and do accordingly
i agree follow yours intuitions and do what you belief. Doing a lot of research about bitcoin is a good thing and you can make it as your material to decide your action. The market is so volatile right now its really annoying and make me nervous to hold my coin when its going down but im sure somehow it will bounce back.
Surely it would be better if it has good market analysis capability. Not only fix on one market but also compare it with other markets to determine the best price. It depends on the experience and willingness to learn. Do not be shy to ask a friend or someone who is more understanding.