If the surface of the soil is sloped towards your foundation even installing a french drain will not help enough. You have to grade that surface soil to slope away from your foundation. If not possible then the next solution is to cover that area out to where the soil slopes away from the foundation.
Firstus and most important before trying to mess with drainage on your own is to contact; your city or county buildings and code. You need to learn what the rules are because if you do not know the rules you could get fined big time.
Check your mortgage paperwork. You should have an 'as-built' included that shows your property lines, N/S, septic, fences, outbuildings, your home dimensions as well as exactly where it sits within your property lines. Hopefully there might be elevations. With at least 3 elevations maybe even two you could have a grading base map made that shows you where the water is going now.
Drainage is critical for a home or any structure. Have you purchased this home already? Not to worry. Disclosure laws are a big deal. Selling a home with a wet basement is a huge no-no.
River rock at the base of your foundation walls on the surface helps stop splashing of mud, not so much water. The siding whether wood or stucco or brick has to be a minimum of 4" above the soil. The concrete of your foundation on the outside of that wall between any soil, mulch, or rock needs to have an asphalt coating painted onto the concrete of the foundation.
On the outside of the footings of your foundation there has to be drain tile (drainage pipe, 4" diameter covered with landscape fabric or better). Tough to find. Gotta dig down. Find a friend with a backhoe. Dig out a corner to see what they did for drainage of that foundation.
A wet basement warrants doing this digging and research.
Another easy fix that might work for you is what is called a 'dry well'. Simply, a big hole that is lined with landscape fabric then filled with drain rock, then covered with landscape fabric and then topped with driveway material of your choice. This collects lots of water and allows that excess water time to seep further into the water table. I have used them an awful lot. Small dry wells were 3X4X3 feet deep. Larger; 8'X10'X4'. They can be much larger if necessary. Don't expect to grow lawn on top of them. River rock and cobble and pea gravels look very nice.
If you could look for your as-built we could help lots more. There are laws against selling people homes with leaky basements. Not cool. Anywhere that I know...you should NOT have been sold a home with a leaky basement. Period. Can be fixed but NOT with your money...