You don't push them on, you support them in following their own interests and progressing at their own pace.
Pre-school children need lots of messy and experimental play so give her playdough, gloop, finger paints, sand, water, shaving foam, etc.
Do lots of activities where she is in control and you ask questions to extend her thinking. That means pretending you don't know what would happen if you do a certain thing, making guesses and then finding out together.
Cooking is a great activity because it covers a lot of experiences and they can do as little or as much as they are able.
Outside you can build dens, transport water, play with mud, grow plants, make stepping stones, measure the rain,.... all the while talking about why things happen and following her interests.
Don't worry about reading and writing concentrate on bigger movements like throwing and catching, painting with water.
For maths you should be talking about big, small, heavy, light, long, short, under, over and exploring these concepts in every way you can. Counting is a good skill but understanding that 1 is more than 2 is more important than being able to count to 100.
Your resources are already around you. Don't spend a fortune on special equipment when you can teach matching with socks, measuring with flour, counting with stairs, etc.
HTH