Some have a natural eye for design and could spend all day whittling away getting the best out of a space, some don't. It'd be great to have your own interior designer on call whenever you need help, but the next best thing is to approach a project with the right mindset and you'll soon be pouring out ideas just like the pros.
Keep in mind that nothing is right or wrong, it's your space, and if you like that neon orange zebra sculpture then you go for it girl! Try not to get stressed, try out layouts and colours before you commit and if all else fails, your space, you can always change things around later! There's no need to get a headache thinking up new ideas, if you're looking for a quick design fix, try mood boards or take inspiration from celebs.
Expectations don't always meet reality, if something unexpected shines its way through in a room just roll with it, it'll often work if you build around that and make it work! Don't just consider one thing, people tend to get one idea in their head, say, bold colour and then pursue it to the end of the earth- forgetting about everything else around it and yeah, they nailed that colour, but in the end it may not live up to expectations.