I hear you on that!!! I bought three lenses from the get-go (I had traded in gear in order to be able to afford both the purchase of the camera plus accessories [extra battery, memory cards, filters, Arca-Swiss plate for using with the tripod] and of course, most importantly, an extra lens or two...) Even at that I went over budget and instead of buying the 24-105mm lens I had intended and which was already set out on the counter for me, rather last-minute-impulsively I bought another more expensive lens instead, the 135mm f/1.8, and while I don't regret that and absolutely love that lens, I am still feeling the gap in the lower end of the focal range, one which I will indeed need to fill in at some point, preferably before or in early springtime. I've been reading about the new Tamron lenses and others, but probably when my bank account has recovered from this recent major hit will go with a couple more Sony lenses....I definitely need -- err, want -- something in the 24mm - 70mm range, either a zoom covering that range or a 24mm f/1.4 or f/1.8 fast prime or a 35mm fast prime, as while my 50mm f/2.8 macro prime will do for general shooting when needed, it doesn't always work well in the situation. That said, the reality is that I do tend to shoot mostly with somewhat longer lenses and macro lenses, hence my initial lens choices of two macros and one fast longer lens......
I also am already lusting after the 200-600mm lens, although I haven't handled one yet so am not really sure if it would be physically comfortable for me to handle on a regular basis, with or without tripod. We have so many ducks and geese and other wildlife out on our little lake here that I'm just itching for a lens with which to really capture them in great detail...... I've had a lot of fun and surprising success with my RX10 IV (a "bridge" camera) and its long lens (600mm / 35mm equivalent on a 1 inch sensor) and now of course I keep thinking about how much more detail a full-frame 61 MP camera body and an appropriate (i.e., 200-600mm) lens could capture..... LOL!
So many lenses, so many dreams of what one could do with them....
But, yes, aside from all that there is the necessary time to be spent in learning one's way around a new camera body and its various dials and buttons and the menu system. Have fun with all of this!