College-taught "best practices" and especially "software development patterns" can pretty much go straight into the trash bin when you start your real software development job. They're not inherently bad, they're just usually not relevant inside the context of whatever applications you end up working on after college. If you try to fit whatever you're doing at work into the patterns you learned in school, it will probably not be helpful. If you do find a chance to apply a pattern you learned in college to something you're doing at work, that's great, but don't try to force it when it's not fitting. It's more important to match the existing patterns inside the software project you're working on than to apply best practices and patterns you learned in school.