Is 2 secured credit cards and a secured loan enough to rebuild credit? detailed info inside 10 points?

I have major defaults on student loans back a few yrs due to hardship. also a credit card. i finally started paying back student loans and i hired a company to repair my credit by sending letters to take negatives off my reports. in the meantime i wanted to build my credit because id like to own a home in 2 years after im married. will 2 secured cards and a secured loan work? help