so without studying we do not easily even understand each other.

I did linguistics for three years, and we never touched Finnish and this is one of the reasons, I presume, why.

language contains suffixes. Does Afrikaans have this too?

Indeed, but we use it less and less because of the influence of, amongst others, English.

And to make things more complicated

This is indeed very complicated! In Afrikaans we have to a certain degree this, but not as much. This is very interesting and now I really understand all of the "memes" on the internet about the troubles of learning Finnish.

I'm sorry, this turned out to be a Finnish language lesson

No! This is really informative and interesting.

I love how Afrikaans sounds!

Indeed! We love to exaggerate the sounds to change the meaning of words. This is more informal and not part of the language, but maybe it is! Yes, "-ch-" in Dutch (e.g. praCHtig) turns to "-g-" in Afrikaans (e.g. praGtig) (English "beauty"). I love to use these "bold" and "in your face" sound in my poetry. I am planning on making a video about it soon!

For me it sounds like you're in a terrible hurry and you have to swallow the word before you manage to complete it

No sorries. This is the whole joke in Afrikaans haha. Comedians in Afrikaans that know Dutch use it as a joke. The one analogy is that Dutch is very "flow-y" and slow, and Afrikaans is like a machine gun. We have some Dutch friends and they always ask us to talk slowly.

I've molded and bended to my needs

Cheers to that. May this creative enterprise never end.