Please start with the books. Software is a tool for those familiar enough with the fundamentals and experienced in design. Software designers offer disclaimers and there is always a user forum where they discuss the software's shortcomings. Visit or look at a university's curriculum online. Try to identify the books they are using for their classes.
There are also some continuing education courses that are also relatively inexpensive. I cannot remember if they require licensure to register for the sites. They offer specials for some 1 to 3 hour courses. If not interested in collecting the pdh or ceu credits, it may not matter.
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James Williams P.E., M.ASCE
Principal/Owner
POA&M Structural Engineering, PLC
Yorktown, VA
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