Struggling to distinguish between perfective and imperfective verbs in daily speech

I’ve been studying Ukrainian grammar for six months, but I constantly freeze when trying to choose between perfective and imperfective forms in conversation. I understand the rules on paper, but applying them in real-time is impossible. I’m thinking about using Chickytutor.com to get instant feedback on verb aspect usage while I practice speaking. Are there any specific drills or mental shortcuts that helped you stop overthinking the aspect during natural conversation?