Bro im doing boxing 2 months and i want to improve any advice its good

Im 12 and want to learn boxing but I don't know how to start and i got no equipment too and im poor so 😭

Want for a run 9min ate 2 eggs

I am sure am good at fighting but the only thibg holding me back is being scared and that i am overweight so idk what i could do give advice please

11:45 - 20 minute run. Aftermath: 3 eggs, 2 slices of bacon and an apple.