hi guys. i am just new to the stock market, like REALLY new - just approximately 1 month.

super newbie jud ko so pardon me if will be asking stupid questions. hehe.
so nibasa na ko gamay'ng mga basics and articles about the stock market (investopedia, forbes, quora, etc).
so i gave it a go last week and bought stocks via BDO Nomura.
i bought stocks from 4 different companies.
pero akong problema, i don't want to be that person nga magsige'g check every minute or every hour sa movement sa stock.
i have a full-time job and several other sidelines, so if possible, I want managing my stocks to take as minimal time as possible, as convenient as possible.
my plan was just to check every end of the day, check the stock prices, then make the decision to hold or sell.
pero sa akong nakita, mura'g sayang ang oras if only end of day i will decide to sell considering next day pa siya ma-process.
i started with a Google spreadsheet where I record the stocks that I bought with the corresponding buy price, then set a target price before nako siya i-sell.
so my questions are:
a.) is there already an existing software (preferably free) that can manage your portfolio where you add the stocks you bought, then alert you (via email, text, etc) if the latest stock price reaches your sell price?
b.) is that feature even available in the BDO Nomura stock platform? i checked and can't find any.
c.) i also did a quick Google search for portfolio management software pero tanan akong nakit-an are too advanced. what I only need is something that will alert me if certain conditions (e.g. target selling price reached) are met.
d.) more importantly, sakto ba ni na akong gihimo? hahaha!
the reason why I am asking is because i am also a software developer (mostly web) so I plan to build a tool that does something like the one I am describing.
plan is to build a tool for personal use but I can share it if possible.
PS (tech stuff):
I am also looking for API's sa stock market that serves real-time stock market prices.
I've seen this so far
https://github.com/edgedalmacio/phisix but not sure if this has request limitations, and if it does show you the real-time data.
do you know of other PSE API that serves real-time data?