If you're struggling, it's important that you share this with someone. Professional help is available through your GP, and you can also speak to your employers' occupational health department to find out what services are available.
Whilst we can't endorse any products and professional advice should not be substituted, you might find the below resources useful in seeking help, learning more about mental and emotional wellbeing, and developing coping tools. Explore what works for you. Check them out.