I’d start low like you were suggesting! Your plant won’t die from too little nutrients but it could definitely become stunted or die if you use too much!
When it comes to autos less is more, I always start 1/8-1/4 strength in Veg then 1/2 to full strength in flower!
No nutes necessary until the cotyledons start turning yellow. Usually around 3 weeks in. Until then, just root bennies and calmag if you're using RO water.
When you finally do start nutes, start at 1/4 strength. Your ppms should be between 300-500 when you first start nutes.