Postpone buying a new laptop

I was thinking about a new laptop for a long time, but, unfortunately it's time to renew my English classes so I have to pay about $3000. That's why I cannot afford to buy a new laptop next month.

I think I have too many devices so I am trying to sell something what I can.

Before I sell this laptop that I bought 3 years ago, I need to finish writing about Excel 2013 on Windows 8.1 on my website. After I sell the one I am using right now, I will buy a new one instead. Maybe next spring?

I am also thinking about buying Surface Pro 4 afterward.