If you just have your mobile phone - the heck! Its more than enough. Go out and shoot with it! If you know what makes a good picture - regardless what gear you use, you'll be able to create a beautiful images.
So whats make a good picture? The answer is COMPOSITION. Good images created from a good and well planned COMPOSITION. If you love street photography, the best website for you to learn about street photography composition is Eric Kim website. This guy is so genuine and honest and he's even giving away his ebook for free! Just click on the download link and you're just minutes away to gain precious knowledge from him.
If you like other types of photography, just Google for it and you'll surely got what you are looking for. There is plenty of websites out there sharing the composition technique for free. Learn from it and put it to practice.
Just imagine if you have printed your artwork and now being displayed at the gallery for sale. Then come one customer asking you "What camera you use to take that beautiful picture?". And then you honestly share to him that "Oh, I'm using this "brand" you know, it takes good picture". Suddenly, this potential customer saying "Great! I'm getting those gears now and I'm going to make one beautiful pictures like yours, print it out and hang it on my wall!". And that customer walk away from you leaving you alone expecting for another customer to buy your artwork. That camera manufacturer just got one sales (thanks to your free advertisement) and you gain nothing from it.
If you are new to photography, buying an expensive DSLR or even a fancy mirrorless camera will not help you to create beautiful images. It takes years of experience and knowledge to be able to create one. If you've already got one camera, than spend the rest of you money on knowledge and gaining some experience. Because knowledge and experience is future proof whereby your gears will be obsolete within one or two years or maybe even less than that.
Just to let you know that I've sold all my camera gear and lenses and I'm currently using one camera only - and its a point and shoot camera. The money I've got from selling those gear is going to be reserved to fund my next photography trip. I'm not telling you to do the same but this is my way to practice and to push my creativity to the max by not relying on the gear, but on my own experience and ideas.
Photographers express their feelings with photography - just like an artist who like to draw on a blank canvas. Camera is just a medium, and every picture you make is actually a reflection of your ideas and your skill in photographic execution. Whether it is a point and shoot camera, a smartphone, DSLR, or even a fancy mirrorless camera - at the end of the day if you've already learn the elements on how improve a shot, you'll realize that gear is just a tools only.
YOU ARE the creator - YOU ARE the art director - YOU ARE the artist - go out there and create your masterpeace regardless of what gear you have in hand.