I need help fixing up my nutes PLEASE HELP

Is the strength to strong on what they suggest for the ec and ppm for their feeding schedule. WIll it burn my plants or do I need to dilute what they say and by how much? Also when do you consider it week one and no longer a seedling? Thanks

start with nutes right away. mix at 10% first and every few days go up a little. after 2 weeks mix at full strength.

how often do you administer the nutes? Am I going to have to add nutes ever day or how often?