Firstly, think before throwing anything away. Tonnes of clothes end up in landfill every year and there are plenty of better options than the bin. The first and maybe the most obvious, is to donate them. You can bring your preloved clothes to charity shops, clothes banks or even a friend who loves your style! You could also learn a little bit of sewing or embroidery, which is a great way to upcycle some old pieces. I personally love fabric markers. There are plenty of tutorials online with step-by-step guides. One of my favourite YouTube channels is Fashion Wizardry, and it has a wonderful range of upcycling ideas.
This brings me to my next tip, which is to download Pinterest. Creating a selection of outfits that you admire or would like to recreate can really help you know what kind of style you like and what specific items you’re looking for. The outfits do not have to match or fit into one particular ‘aesthetic’, the purpose of this is just to try help you discover what your favourite colours are, what kind of clothes you like, and to help you discover new items and styles you’ve never experimented with before.
Pinterest can also really help with the next step: have a plan. When you do need some new clothes, decide what you're looking for and have a few pieces you want in mind. You could even make a list of things you needed and go from there. This can also help you avoid impulse buying, which is quite tempting right now during lockdown. If you do see something you really love that wasn’t in the original plan and you aren’t sure whether it’s an impulse buy, I recommend sleeping on it for a few days.