My Imagination ?

I penned three new lines
Tho I hadn’t a clue where it was going
I always commence a ditty
Without ever really knowing
What the poem is about
making it up as I go along
Tho I may have self-doubt
If the finale will end up wrong

I sometimes hit a mental block
Wondering what can be my theme
Yet I start on a certain topic
I may get carried away in a dream
My imagination has a will of it’s own
It’s the weirdest one that I have ever known

Trouble is nowadays
When I sit down for the night
I try to watch the tv
But a spark switches on a light
Inside my brain that is amidst my head
It wanders off into creating new poetry 
I am so easily led

I never used to be like this
I reckon it must be my age
As I jot this down
Having turned another page
I’ve got friend’s who read my verses & they say to me
“Jill when we meet each other next time, 
No matter where this may be
You will be speaking in rhyme
Telling everything in poetry”?