How do I analyze each transaction and record it in the general journal by Using pg. 3 to begin January’s transactions?

If you have the book in front of you, I am in Ch. 6 pg. 186. The Mini Practice Set 1

Purchased supplies for $4,000; issued check 1015

Purchased a one year insurance policy for $6,000; issued check 1016

Sold Services for $18,000 in cash and $2,000 on credit during the first week of Jan.

Collected a total of $3000 on acct. from credit customers during the first week of Jan.

Issued Check 1017 for $2800 to pay for advertising during the month

Collected a total of $2500 on acct. from credit customers during the week of Jan.

Returned supples for a cash refund of $550