Thank you for sharing your dream with us. Please take everything that I share to the Holy Spirit as He Alone gives the accurate interpretation.
Please be careful about putting yourself or being in situations that require you to “rescue” yourself. Also pray for God’s Grace and discernment to choose the path/situations/interactions that you are involved in so that you don’t get overwhelmed (drowning can be a play on words of being overwhelmed). Sometimes saying “No” is the right decision as it is actually saying “Yes” either knowingly or unknowingly to what God really wants you to be involved in. Please have a look at Zechariah 4:6. Be bold and encouraged!