Not much info to go buy in advising.
What kind of game are you trying to make?
....
If Visual Novel, then ye, you can use
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Next you need to decide what style of art it will be before we can help with how you might source that.
For a realistic style people use
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You will probably need some kind of image editing tool too, try
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or
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For sound you will need
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or
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and can find clips, which might need editing in above software, via
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Plenty other tools and sources you might need and ways to source assets. Maybe we can continue this once we actually know what kind of game it is you want to create.