F I, started already, you have Control over Expenses and Saving @ Good Rate...I'm planning to achieve FI in next 10 years. If not at least close to 75% of there. No target corpus as of now, all i know is I need to save minimum 50% of take home to realise FI target.
Will see how it goes as expenses are also gonna increase going forward.
I track my assets and expenses in Google sheets.
Moreover mindset is trained already... Focused and Aligned towards Real Goal.