Even as I attempt to form this first sentence I’ve typed and deleted a couple of pseudo intellectual versions of it, paralysed by my own indecision. Knowing where to begin is a myth, no one really knows, most of us just pick the thing most approximate to satisfaction and roll with it, so take some comfort in that and jump in. There. There was some free advice from your author who has yet to even do his research. Here are some more pieces of advice I did not think of that you should take more seriously.
Remember that TV show that ran from the mid-90s to the mid-noughties? Aunt Mabel and her sheepdog Pippin would fly around in a polka dot aeroplane talking about spiders and littering? Well, that was: Come Outside a popular kids show whose namesake is the title of this bit. It was a show that taught kids to interact with their immediate surroundings and learn about nature among other things. The great outdoors has a lot to teach us and is scientifically proven to boost serotonin levels. Taking a walk in your local green space and conversing with the squirrels and flowers can leave you happy, refreshed and therefore inspired.
When it comes to the art of writing, the cut-up technique was used by the Dadaism movement, William S. Burroughs and most recently and famously, David Bowie. It’s a technique meant to ease writer’s block by cutting up an already established text into its words and then constructing something entirely new from the already assembled component parts. It’ a curious creative process but it’s also a good example of taking inspiration from something you know and realising its potential. It illuminates that no art or project has a final form and that there are truths and value to be gleaned from every aspect.
The psychological benefits to exercise have been so well documented you’d think everyone would know by now. The mind and the body are so interconnected and the best way to feel inspired is to feel good about yourself. Exercise, especially for the uninitiated can be like finding a tenner in your coat pocket, so surprisingly uplifting. It’s a resource you don’t expect to help you in times of mental stagnation but it’s the best ally you never knew you had.