Automation sounds like a big project, but you don't have to do everything at once. Start small and build gradually.
Step 1: Map your processes
Write down what tasks you perform daily, weekly and monthly. Mark the repetitive ones.
Step 2: Identify bottlenecks
Which tasks take the most time? Where do things go wrong most often? Those are your automation candidates.
Step 3: Start with one process
Choose the process with the most impact that's easiest to automate.
Step 4: Measure and improve
Track how much time you save. Use that data to determine the next step.