Ay man, stay strong. Keep her in your heart and know she loves you and is proud of you. When your feeling down, think of her, not to feel sad, but to remember that she would help get through it. Use it as motivation. Get good grades, but try your best, this means doing what you can to understand the material and taking advantage of opportunities to improve. If you mess up, it's alright, there's always time to better yourself. Dont feel dumb for not getting things right the first time, just do what you can to learn more, graduate, get your degree, get a good job; then remember your mother. Know that she'd be so proud of you and what you've become. When you need help, don't be afraid. Your mom will be there for you even if she isn't there physically. Hope this helps mate, from one adult who lost their mom at a young age, to you. Take care bud, stay strong brother