Tis The Season to Start Planting (Indoors)!

I feel like of all the things I try, this is the one I have the worst luck with - starting veggie plants indoors. This is year three, and Im hoping the "3rd times a charm" rings true. This year Ive got a wonderful weapon on my side - the infamous grow light. In the past my tomatoes and pepper plants have grown ghastly tall and scraggly, always reaching for the light they cant get enough of. Ive started my plants that all require 6-8 weeks of growth before being transplanted outside. I plan to plant my garden the first week of June, which is usually after the last frost. So my tomatoes are on week 2 now. I also have cabbage in, ground cherries, some herbs, a couple flowers. The majority of my tomatoes germinated the first time around, but the ones that didn't I replanted last week. Im waiting for them to germinate. Its a tricky balance of watering too much and not watering enough. I try to check and water as needed in the mornings. The grow light stays on overnight and they get natural sunlight through the window during the day. This week I have to plant my melons and squashes and my popcorn - along with the last of my herbs and some turnip. My only issue is that Im running out of space to put them all. Maybe a greenhouse will be an investment for the future..