Can I claim more Benefits?

[michaelm9945]

I've been saving up for a few months to extend my wife's visa later this year and I've almost got the full amount. I'm on Disability and unable to work and my wife will give Birth soon. This is the list of Benefits I receive

Housing Benefit
Council Tax Reduction

Employment and Support Allowance
Disability Living Allowance
Child Benefit (I will Open a new claim once my son is Born)
Child Tax Credit (I will Open a new claim once my son is Born)

Even with all that money I get, I have about under £100 at the end of each week and I will have to start saving up for the ILR as soon as my wife extends her visa because it will actually take me 2 years to save up for it