The girl From mars

Thanks in advance for any advice. I started as a sole trader working from home in mid March 24. I didn’t exceed the trading allowance (made a loss) but did buy equipment and goods for the business in the previous months. I’m also employed full time. I’m hoping to purchase an electric van soon in the 24/25 tax year. Can I include everything in the 24/25 year or will I have to complete the 23/24. Ty