1. Know. Your. Garden. This includes your microclimate as well as other considerations. For instance, since I am in a community garden, I can't control how the other plots nearby are maintained. Thus, no matter how much Sluggo I use, I will always have a kazillion snails and slugs marauding my plot for delicious seedlings. Hence, I start from seed at home to minimize seedling death. Climate is another consideration. I start tomatoes at home from seed because it is way too cold in January/February/March for tomato seedlings to thrive in my garden plot. As of this week, my tomato seedlings are now almost all planted since the overnight lows are getting close to 55 F.
2. Consider prepping your seeds. This speeds up germination. For beans and peas, I soak overnight. For others, just a few hours. Here's an article. I first learned about this in my favorite gardening book, From Seed to Skillet by Jimmy Williams and Susan Heeger. Jimmy has a more involved protocol for seed prep for those who are interested.
3. Be sure your soil is good quality. Another duh but I have seen many things here in the gardens, and one thing I like to see is good soil prep. I usually add a handful of general organic fertilizer for veggies before planting at the very least. I add even more stuff for tomatoes. I fertilize my blueberries and citrus, both in pots, monthly.
4. Keep up your gardening journal/log/diary/calendar. It does help to write down when you start seeds and when you plant. My journal is a combo calendar/diary. I paste an empty monthly calendar form into my journal for each month. I also log what I have done for that month.
I have written about this before: growing from seed is cheaper, the whole world is yours in terms of variety, you can control your quality (all organic or not?), and it can be all about mindfulness if you choose.