で、に、へ ？？？

[kentaku_sama]

Ok, this really stumps me on which one to use alot of times!!

に Shows location, kind of like the one that locates the other two. Correct me if I'm wrong. It also can show when such as time, where , and other things I don't know.

で Shows location as well, but in a different way. It shows where the verb will happen and can be controled by に
ex: 私たちは魚屋で５時３０分に行きます。　　　　At 5:30, we will go to the fish shop.

へ　　Shows location of current time. Not sure
イチゴはカラクラへいます。　　Ichigo is at karakura (town)

I want someone to explain these to me wth examples because I wanna master these, tell me when you use them such as with objects, subjects, verbs ect... and stuff.

[richvh]

へ isn't location, it's direction. I don't think you can use it with いる at all. You'll commonly see it used with facing verbs like 向かう, or in place of に with motion verbs like 行く.

ゆきは町へ向かって歩いた。
あの飛行機は東京へ行く。

で indicates a much more general location than に. This is why it is used with place of work, as you generally don't stay in one place while working, and why に is used with verbs like 座る, as you generally don't move around while sitting.

父は工場で働いている。
自分の席に座りなさい。

[astaroth]

kentaku_sama you can look at Tae Kim's guide, where these particles are explained in detail. I think from the question you're not using any textbook so a guide of basic grammar might be useful

私たちは魚屋で５時３０分に行きます。

I would have said: 私たちは５時３０分に魚屋へ行きます

イチゴはカラクラへいます。

I would have said: イチゴはカラクラにいます

Also notice that the place where one works（働く）needs the particle で, while the place where one is employed（勤める）wants the particle に. For instance
［私は］事務所で働きます
［私は］大学に勤めています

Please anyone correct me if I got this wrong.