Ants cannot reach the skies and there’s Allah SWT’s Wisdom in it. But they go deep in the ground, make the soil conducive to the nurturing of seeds. These very seeds become giant trees, which eventually reach out to the skies.
You may feel insignificant. Your efforts may seem insignificant. But who knows that on the Day of Judgement, those very efforts which seemed small and meager, become giant trees in Jannah?
You may not be able to do certain good deeds but you can assist others to do them inshaa’Allah.
Allah SWT will multiply according to His Mercy and not according to the outcomes and the platform you use to do His Work. Not your skills, your size, or even your means because all of these are given entirely by Allah SWT. He SWT gives some and He gives other things to some, in smaller proportions. It’s your sincerity that counts.
And Allah SWT has said in part of the aya 261 in Surat’l Baqarah:
وَاللَّهُ يُضَـعِفُ لِمَن يَشَآءُ
‘Allah gives manifold increase to whom He wills.’
And Allah SWT knows best.