Why won't my car go into next gear without me forcing it on 1996 Toyota Camry

I can be going 20-30 mph and it won't shift into next gear unless I floor it,and wen I stop I smell burning smoke from under my hood wat can that be

Asked by for the 1996 Toyota Camry
Fluid leak onto hot exhaust. Check transmission fluid, have detent cable adjusted. Mechanic will know what that is!
2 more answers
Have you checked the FLUID LEVEL?
sounds like a shift solonoid. the burning smell is probably clutch material in the tranny. take it to a tranny shop asap