My last year for indoor seed starting was last year.
I told myself "jost once more" It had been 6 years since I tried it. Horrible results. Long spindly stems that damped off the minute they were transplanted outside. The ones that made it struggled all season and I had 4 weeks od so-so flowers.
I am not et up with lights etc either. My studio is in the basement of this house I share w/ my DD and SIL.
Its expensive to buy annuals locally but its worth it.