Psh, you're not just fine bud you're looking good! I wouldn't fret too much over not lst'ing them. Unless you're fighting with having enough heigth to keep from burning their tips, you likely won't even need too. LST'ing can be helpful in keeping them from getting as tall, and to sort of 'pull' limbs one direction so that the foilage underneath gets more light, but is by no means mandatory. Hell, most of the time I don't even start tieing limbs to point outwards and horizontally until late veg/pre flower, but that's mostly because I'm new to any form of LST'ing and I'm kind of learning still. Plus I haven't had a real space issue until here lately.