You will be able to redeem your investments only after you receive repayments from borrowers. If you have selected Gold/Silver plan, your funds will keep getting auto-invested in other profiles as soon as the repayments are credited to your Lenden account. In such scenario, you may want to change your plan to basic which will stop auto-invest and your repayments will stay in your Lenden account until you choose to invest it further manually or withdraw it.
Note- Frequent withdrawals and avoiding reinvestment strategy can affect your platform returns. Thus, it is not advisable.