Theory:

Quantifiers are used to describe how much or how many of something we are talking about.

Some quantifiers are only used for countable nouns:

many - I have many friends. (many means a large quantity)

a few - I have a few friends. (a few means a small quantity)

Note: there is a difference between a few and few.

I have a few friends. - means I have some friends, but the number is not large.

I have few friends. - means I have nearly no friends.

Some are only used for uncountable nouns:

much - there isn't much milk in the fridge. (much means a large quantity, and is not used in positive sentences. lots of and a lot of are used instead.)

little - There is a little milk in the fridge.

Note: there is a difference between a little and little.

I have a little money - means I have some money, but the amount is not large.

I have little money - means I have nearly no money.

Some are used for both kinds of nouns:

a lot of - a lot of friends and a lot of money.

lots of - lots of friends and lots of money.

some - I have some friends and I have some money.

any - I don't have any money and I don't have any friends.

Some and any mean the same thing, but some is usually used for positive sentences, and any is used for negative sentences and questions:

I have some time, but I don't have any money.

Do you have any milk?