what is a niche?[like can you explain me this thing like a am baby cause i am here with most probably 0 knowledge] what are some things you need to excel in your selected niche? [i know putting time and effort is needed] is home designing a good niche? like talking to people on how they can improve their home or room designs etc what are you guys thoughts on it? thank you for hearing and responding to my problems.

hello everybody i am currently 16 and thinking to start an agency but i don't know even an A of it so if you are experienced then please tell me the path to start. I am from India though. THANK YOU