I can't get my debits and credit to match up. I don't know what I'm doing wrong?

The trial balance of Blue Design Service as of January 1, 2020 had the following normal balances:

Blue Design Service completed the following transactions during 2020.

1. Issued stock $5,000.
2. Paid the salaries payable from the prior year.
3. Paid $600 cash for supplies.
4. Collected $600 in advance for design service to be performed later.
5. Paid the amount due on account.
6. Prepaid insurance of $600 for a six month period.
7. Performed design services for a customer and received $2,800 cash.
8. Paid office rent for the period, $2,000.
9. Completed a large design job and billed the customer $6,500.
10. The company purchased a truck for $30,000 making a down payment of $6,000 and taking a loan on the remainder of $24,000 at a 6% annual interest rate.
11. Collected $1,500 cash from customer on account.
12. Purchased fuel for the truck, paying $400 on account.
13. Received $3,000 cash for performing design services.
14. Paid employees, $700.
15. Paid $200 in dividends to the stockholders.

Adjustments:

16. Prepaid insurance used during the year was $100 per month.
17. Unearned services earned during the year $1,000.
18. Accrue interest on the note payable for one full year.
19. Accrue salaries for year end, $300.
20. Depreciation for the year was $3,000.
21. There was $500 supplies on hand at year end.

*I have to record the transactions in a General Journal, T- Accounts, and Trial Balance* Here is my work below. Can someone please help me see what I'm doing wrong?

General Journal
				Debit	Credit
1			Cash	5,000
			Common Stock		5,000
2			Salaries Payable	500
			Cash		500
3			Supplies	600
			Cash		600
4			Cash	600
			Unearned Revenue		600
5			Accounts Payable	2,100
			Cash		2,100
6			Prepaid Insurance	600
			Cash		600
7			Cash	2,800
			Design Revenue		2,800
8			Rent Expense	2,000
			Cash		2,000
9			Accounts Receivable	6,500
			Design Revenue		6,500
10
			Truck	30,000
			Cash		6,000
			Notes Payable		24,000
11			Cash	1,500
			Accounts Receivable		1,500
12			Fuel Expense	400
			Accounts Payable		400
13			Cash	3,000
			Design Revenue		3,000
14			Salary Expense	700
			Cash		700
15			Dividends	200
			Cash		200
		Adjustments
16			Insurance Expense	1,200
			Prepaid Insurance		1,200
17			Unearned Revenue	1,000
			Design Revenue		1,000
18			Interest Expense	1,440
			Interest Payable		1,440
19			Salary Expense	300
			Salary Payable		300
20			Depreciation Expense	3,000
			Accumulated Depreciation		3,000
21			Supplies Expense	450
			Supplies		450

Is there something I did wrong? Also, when I'm doing the trial balance, do I take the balances they had at Jan 1 into account?

$ 12,000 2,500 350 1,200 2,100 500 1,000 Cash Accounts Receivable Supplies Prepaid Insurance Truck Accumulated Depreciation Accounts Payable Salaries Payable Interest Payable Unearned Revenue Note payable Common Stock Retained Earnings Dividends Design Revenue Fuel Expense Depreciation Expense Insurance Expense Interest Expense Rent Expense Salary Expense Supplies Expense 10,000 2,450