This is a nice, short piece of advice about how making a difference starts with you and the spaces you inhabit. Organise and beautify your room so that it becomes a space that makes you happy and at ease. You don't need money or lots of resources. You just need some taste and some effort.
Also, bear in mind that once you start making this effort, other people will not understand what you're doing and may even feel threatened by it, because your hard work and improved state will only make their wreteched state look worse. Thus, after taste and effort, you will need patience and perseverance.
There will be setbacks. The point is that you keep striving towards a better state.
And with Allah alone is every success.