Greetings @amanda44!
Meditation is tricky- I’ve been meditating for years and I still have troubles and struggles with everything involved. From finding time, to getting a quiet place, to being able to put stresses and worries aside- I feel you! 
Others have shared some really awesome advice, so adding to that, here are a few tips you might consider:
Are you sitting comfortably?
There are many ways to position your body during meditation- from walking, to using certain cushions, to laying on spike/acupuncture mats, yoga, etc.
If your current style of meditation isn’t working, why not switch it up and try meditation another way?
→ Comfortable Positions for Meditation Discussion
Guided Meditations
If you’re having a hard time focusing on your own, guided meditations are a great way to help gently guide and direct your thoughts.
Spells8 has a collection of Guided Meditations, and @Silverbear has some amazing meditations on her YouTube Channel as well. I know some folks use Headspace with great results too.
My best advice to you is to keep experimenting and not be afraid to make your meditation practice your own. Find what works best for you and have fun with it!
Blessed meditating! 