Let's sort your curiosity, at least, by responding to these questions:

a) What leads you to consider buying DOT right now?
b) What did your research tell you about DOT in general?
c) Are you involved in that coin for long? Like always lurking in their community and always following the update/s?
d) Do you understand the risks once you decided now to buy DOT?

Only you can answer that. You can decide what to do now later on.