Can someone help me understand the difference with compound, complex, simple, etc sentences? It's so hard for me to understand and it's affecting my grade. Please help:(

Keizurae, “Do what you can, with what you have, where you are.” – Theodore Roosevelt.

Explanation:

Simple Sentence:  Keizurae ate dinner. This is a simple sentence. There is one subject (Keizurae) and one verb a.k.a predicate (ate)

Complex Sentence: Although Keizurae's friends begged, Keizurae chose not to go to the reunion. This is a complex sentence. There is more than one subject (Keizurae and friends) and more than one predicate (begged and chose)

Compound Sentence: Keizurae likes to watch cartoons, and is going to watch them tonight. This is a compound sentence. One sentence is a complete thought (Keizurae likes to watch cartoons). One is not complete (and is going to watch them tonight). We call these independent and dependent sentences.  When an independent and dependent sentence is connected by a conjunction, it is called a compound sentence.

it is grammatically incorrect and is illegible to me and i can not answer it.