Starting a clothing brand………..

Hi everyone I’m new to all this so looking some advice and ideas! I have done research, watched YouTube videos and everything else. I have developed a clothing brand called Evolve Apparel it’s centred around self improvement and inspiration. I’m thinking of using print on demand as I’m only starting out. I am only going to focus on graphic tees for now as I think too much products can become a problem. Please let me know what you think and if you have any suggestions thanks!