Fertz, yes or no?

Just bought some ferts today for future use. I understand theres probably some better shit out there than what I got, but I'm on a budget n just found what i thought was best at the store. This is where all of you come in and either say "Fuck no, slap yourself" or "yea, fuck it, fert away".

I got miracle grow All Purpose liquid plant food (12-4-8). Plan on using this for veg as its high in N, low for P, and in the middle for K.

Next, i got Shultz Starter Plus (5-10-5). This I was planning on using for Flowering since the N and K are low, and the P is high. Now this is called "Starter Plus" because its for transplanting, not flowering, but im going by the N-P-K n it sounds good cause its low amounts of nutez. But maybe the micro nutrients arent suitable for flowering or sumthing more into detail that i dont know about since it IS called "starter plus, transplanting solution".

I picked both of these cause they seemed low in nutez n wouldnt burn my shit as easily, plus i could always just use more if it wasnt enough. another flowering solution there was a 5-30-5, n that seemed a bit high.

Just give me the feedback let me know if these would be OK (not top notch, but OK). Im kinda iffy on the transplanting solution for flowering so let me know if it should only be used for what it clearly states.

those ferts r fine for indoor or outside container grown plants but liquid ferts r not intented for outside garden use well i know the manufacturers lable says u can but the liquid ferts leach out of soil with every watering which adds to environmental pollention u should use an oganic slow release fert unless u like waisting ferts time money effort n the environment ive never had fert burn using organics outside