[izzu]

I've been studying Japanese for 1 1/2 years.

Personally so far and my problem is connecting sentances and knowing when to use the which particle, this mainly being for like... complex sentances.

Also Expanding my vocabulary in general.

and Kanji usage and pronounciation.

like「本」...

When used in the surname「山本」it says "moto", however when used in 「日本」it reads "hon". It can be quite confusing at times.