Explanation: A colon should be placed in between the two phrases ‘It wasn’t easy’ and ‘in order to start writing a paper’ since the second phrase occurs following the first phrase.
A comma is needed in between ‘in order to start writing a paper’ and ‘I had to brainstorm ideas’ because ‘in order’ requires a comma. It’s similar to (‘However,’) or (‘Because of this,”).
L- LINK The last sentence should reinforce your original point or link your writing to the next paragraph. The link sentence can provide a transition to the next topic or paragraph
