Appropriate form for ltcg and online freelance work

Dear Experts,

For AY 2016-17, my financials are very minimal.

1) Salary ---- Nil

2) Interest/Dividend --- Less than 5000.

3) STCG --- Very minmal (mostly Net loss --- only stocks) 

4) Online Freelance work ---- Less than 20000  (Received through PayPal)

Though my net income is far less than minimum, I need to file my returns as I need to carry forward my STCG from previous ( multiple years ).

I would have easily filed ITR-2 as I have previously. But due to freelance income, do I really need to go for ITR-4? Can it be self-filed too? For this year, I am ready to show zero expenses. 

Please advise.

Regards,

Harsha