If you're looking to draw the characters from 'My Hero Academia', the key is to start with the basics. Understand the proportions and anatomy – this is pivotal. Then, sketch out a basic structure for your character, using simple shapes to represent their body and head. Once you have that, add in the details like the facial features and hair, following the unique style of the anime.
If you want to make it really accurately, study the characteristics of each character carefully, their costumes, their hair, and their distinct features. Remember, art isn't about perfection, but progression. You may not get it right the first time but keep practicing. There are also a lot of step-by-step tutorials available online which might help.