After effects explainer works

Hi

I have been trying to finish an explainer video for some time now and have decided to pass on the work before I cause myself harm.

I have written a script and had a voiceover recorded.

I have used two seperate explainer templates in after effects to create 7 seperate scenes.

I have very little knowledge of after effects but the bare bones are there.

I am now trying to add a few bells and whistles and just make the scenes fit the script.

My after effects is hanging and crashing constantly and I am at the end of my tether .

I basically want someone to put together a first draft so that the scenes match up with what is being said in the audio.
The characters may need a little animating , ie apearing on screen at the right time.
I would like the transitions between scenes sorted.

Then I would like a few more things added , a few speech bubbles and a few elements etc.
I would like to write this list after watching a first draft.

I would like the whole thing tidied up and made profesional.