Confusion between orbitals and subshells etc

[Shannonhoang]

Can someone please clarify the differences between shells, subshells, and orbitals...
I looked it up in the textbook but I'm still a little confused

[Chem_Mod]

Electrons in the same shell have the same n value. Within a shell (same n value), electrons in the same subshell have the same l value. Within a subshell ( same l value), electrons in the same orbital have the same m_l value.

For example: If we compare the quantum numbers (excluding m_s) of an electron in the 3p_x orbital and the 3p_y orbital, the 3p_x electron would have the quantum numbers: n=3, l=1, m_l=-1. The 3p_y electron would have the quantum numbers n=3, l=1, m_l=0. They are in the same shell (n=3), same subshell (both in the p subshell), but they are in different orbitals (one is in the p_x orbital, the other is in the p_y orbital).